From 3e6af01e396e29ae89bfb4f8311c49f74b1bc575 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 13:37:29 -0700
Subject: [PATCH 01/16] BUG: ENH: update spa_files to patch timezone bug

* closes #168
* get source and header in setup.py
* replace "timezone" with "timezone" to fix the bug
* also update readme
* also remove a lot of extra whitespace and tabs

Signed-off-by: Mark Mikofski <bwana.marko@yahoo.com>
---
 pvlib/spa_c_files/README.md   |   36 +-
 pvlib/spa_c_files/cspa_py.pxd |   58 +-
 pvlib/spa_c_files/setup.py    |   31 +-
 pvlib/spa_c_files/spa_py.c    | 2508 ++++++++++++++++++++++++---------
 pvlib/spa_c_files/spa_py.pyx  |   61 +-
 5 files changed, 1902 insertions(+), 792 deletions(-)

diff --git a/pvlib/spa_c_files/README.md b/pvlib/spa_c_files/README.md
index f9521483cb..6b15bd35e2 100644
--- a/pvlib/spa_c_files/README.md
+++ b/pvlib/spa_c_files/README.md
@@ -1,34 +1,38 @@
 README
 ------
 
-NREL provides a C implementation of the solar position algorithm 
-described in 
-[Reda, I.; Andreas, A. (2003). Solar Position Algorithm for Solar Radiation Applications. 55 pp.; NREL Report No. TP-560-34302](
-http://www.nrel.gov/docs/fy08osti/34302.pdf).
+NREL provides a C implementation of the solar position algorithm described in
+[Reda, I.; Andreas, A. (2003). Solar Position Algorithm for Solar Radiation Applications. 55 pp.; NREL Report No. TP-560-34302](http://www.nrel.gov/docs/fy08osti/34302.pdf).
 
 This folder contains the files required to make NREL's C code accessible
 to the ``pvlib-python`` package. We use the Cython package to wrap NREL's SPA 
 implementation. 
 
-** Due to licensing issues, you must download the NREL C files from their 
-[website](http://www.nrel.gov/midc/spa) **
-
-Download the ``spa.c`` and ``spa.h`` files from NREL, 
-and copy them into the ``pvlib/spa_c_files`` directory. 
+** Due to licensing issues, the [SPA C files](http://www.nrel.gov/midc/spa) can
+_not_ be included in the pvlib-python distribution. The SPA C files will be
+downloaded when you build the Python extension. By using this module you agree
+to the NREL license in SPA_NOTICE. **
 
 There are a total of 5 files needed to compile the C code, described below:
 
 * ``spa.c``: original C code from NREL 
 * ``spa.h``: header file for spa.c
-* ``cspa_py.pxd``: a cython header file which essentially tells cython which parts of the main header file to pay attention to
-* ``spa_py.pyx``: the cython code used to define both functions in the python namespace. NOTE: It is possible to provide user access to other paramters of the SPA algorithm through modifying this file 
+* ``cspa_py.pxd``: a cython header file which essentially tells cython which
+  parts of the main header file to pay attention to
+* ``spa_py.pyx``: the cython code used to define both functions in the python
+  namespace. NOTE: It is possible to provide user access to other paramters of
+  the SPA algorithm through modifying this file 
 * ``setup.py``: a distutils file which performs the compiling of the cython code
 
 The cython compilation process produces two files:
 * ``spa_py.c``: an intermediate cython c file
-* ``spa_py.so``: the python module which can be imported into a namespace
+* ``spa_py.so`` or ``spa_py.<cpyver-platform>.pyd``: the python module which
+  can be imported into a namespace
+
+To create the SPA Python extension, use the following shell command inside this
+folder:
+
+    $ python setup.py build_ext --inplace
 
-To process the original 5 files, 
-use the following shell command inside this folder
- 
- $ python setup.py build_ext --inplace
+Executing the build command will also download the ``spa.c`` and ``spa.h``
+files from NREL and copy them into the ``pvlib/spa_c_files`` directory.
\ No newline at end of file
diff --git a/pvlib/spa_c_files/cspa_py.pxd b/pvlib/spa_c_files/cspa_py.pxd
index bcf533493f..d7d531f6ae 100644
--- a/pvlib/spa_c_files/cspa_py.pxd
+++ b/pvlib/spa_c_files/cspa_py.pxd
@@ -1,40 +1,40 @@
 cdef extern from "spa.h":
-	ctypedef struct spa_data:
-		int year           
-		int month          
-		int day            
-		int hour           
-		int minute         
-		double second  
-		double delta_ut1   
-		double delta_t     
-		double timezone    
-		double longitude   
-		double latitude        
+    ctypedef struct spa_data:
+        int year
+        int month
+        int day
+        int hour
+        int minute
+        double second
+        double delta_ut1
+        double delta_t
+        double time_zone
+        double longitude
+        double latitude
 
-		double elevation       
+        double elevation
 
-		double pressure        
+        double pressure
 
-		double temperature     
+        double temperature
 
-		double slope           
+        double slope
 
-		double azm_rotation        
+        double azm_rotation
 
-		double atmos_refract    
+        double atmos_refract
 
-		int function       
+        int function
 
-		double e0
-		double e
-		double zenith     
-		double azimuth_astro
-		double azimuth    
-		double incidence  
+        double e0
+        double e
+        double zenith
+        double azimuth_astro
+        double azimuth
+        double incidence
 
-		double suntransit 
-		double sunrise    
-		double sunset   
+        double suntransit
+        double sunrise
+        double sunset
 
-	int spa_calculate(spa_data *spa)
+    int spa_calculate(spa_data *spa)
\ No newline at end of file
diff --git a/pvlib/spa_c_files/setup.py b/pvlib/spa_c_files/setup.py
index 7da5672ed9..fb0fecea40 100644
--- a/pvlib/spa_c_files/setup.py
+++ b/pvlib/spa_c_files/setup.py
@@ -1,9 +1,36 @@
-#setup.py
+# setup.py
 
+import os
+from urllib import request, parse
 from distutils.core import setup
 from distutils.extension import Extension
 from Cython.Build import cythonize
 
+DIRNAME = os.path.dirname(__file__)
+SPA_C_URL = r'https://midcdmz.nrel.gov/apps/download.pl'
+SPA_H_URL = r'https://midcdmz.nrel.gov/spa/spa.h'
+VALUES = {
+    'name': 'pvlib-python',
+    'country': 'US',
+    'company': 'Individual',
+    'software': 'SPA'
+}
+DATA = parse.urlencode(VALUES).encode('ascii')
+
+# get spa.c
+REQ = request.Request(SPA_C_URL, DATA)
+with request.urlopen(REQ) as response:
+    SPA_C = response.read()
+SPA_C = SPA_C.replace(b'timezone', b'time_zone')
+with open(os.path.join(DIRNAME, 'spa.c'), 'wb') as f:
+    f.write(SPA_C)
+# get spa.h
+with request.urlopen(SPA_H_URL) as response:
+    SPA_H = response.read()
+SPA_H = SPA_H.replace(b'timezone', b'time_zone')
+with open(os.path.join(DIRNAME, 'spa.h'), 'wb') as f:
+    f.write(SPA_H)
+
 setup(
-    ext_modules = cythonize([Extension("spa_py", ["spa_py.pyx",'spa.c'])])
+    ext_modules=cythonize([Extension('spa_py', ['spa_py.pyx', 'spa.c'])])
 )
diff --git a/pvlib/spa_c_files/spa_py.c b/pvlib/spa_c_files/spa_py.c
index 28f9127762..b43dbc70ec 100644
--- a/pvlib/spa_c_files/spa_py.c
+++ b/pvlib/spa_c_files/spa_py.c
@@ -1,28 +1,36 @@
-/* Generated by Cython 0.21.2 */
+/* Generated by Cython 0.28.5 */
+
+/* BEGIN: Cython Metadata
+{
+    "distutils": {
+        "depends": [
+            "spa.h"
+        ],
+        "include_dirs": [
+            "."
+        ],
+        "name": "spa_py",
+        "sources": [
+            "spa_py.pyx",
+            "spa.c"
+        ]
+    },
+    "module_name": "spa_py"
+}
+END: Cython Metadata */
 
 #define PY_SSIZE_T_CLEAN
-#ifndef CYTHON_USE_PYLONG_INTERNALS
-#ifdef PYLONG_BITS_IN_DIGIT
-#define CYTHON_USE_PYLONG_INTERNALS 0
-#else
-#include "pyconfig.h"
-#ifdef PYLONG_BITS_IN_DIGIT
-#define CYTHON_USE_PYLONG_INTERNALS 1
-#else
-#define CYTHON_USE_PYLONG_INTERNALS 0
-#endif
-#endif
-#endif
 #include "Python.h"
 #ifndef Py_PYTHON_H
     #error Python headers needed to compile C extensions, please install development version of Python.
-#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03020000)
-    #error Cython requires Python 2.6+ or Python 3.2+.
+#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
+    #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_21_2"
+#define CYTHON_ABI "0_28_5"
+#define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
-#define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
+  #define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
 #endif
 #if !defined(WIN32) && !defined(MS_WINDOWS)
   #ifndef __stdcall
@@ -41,6 +49,12 @@
 #ifndef DL_EXPORT
   #define DL_EXPORT(t) t
 #endif
+#define __PYX_COMMA ,
+#ifndef HAVE_LONG_LONG
+  #if PY_VERSION_HEX >= 0x02070000
+    #define HAVE_LONG_LONG
+  #endif
+#endif
 #ifndef PY_LONG_LONG
   #define PY_LONG_LONG LONG_LONG
 #endif
@@ -48,63 +62,399 @@
   #define Py_HUGE_VAL HUGE_VAL
 #endif
 #ifdef PYPY_VERSION
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+  #define CYTHON_COMPILING_IN_PYSTON 0
+  #define CYTHON_COMPILING_IN_CPYTHON 0
+  #undef CYTHON_USE_TYPE_SLOTS
+  #define CYTHON_USE_TYPE_SLOTS 0
+  #undef CYTHON_USE_PYTYPE_LOOKUP
+  #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #if PY_VERSION_HEX < 0x03050000
+    #undef CYTHON_USE_ASYNC_SLOTS
+    #define CYTHON_USE_ASYNC_SLOTS 0
+  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
+    #define CYTHON_USE_ASYNC_SLOTS 1
+  #endif
+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #undef CYTHON_USE_UNICODE_INTERNALS
+  #define CYTHON_USE_UNICODE_INTERNALS 0
+  #undef CYTHON_USE_UNICODE_WRITER
+  #define CYTHON_USE_UNICODE_WRITER 0
+  #undef CYTHON_USE_PYLONG_INTERNALS
+  #define CYTHON_USE_PYLONG_INTERNALS 0
+  #undef CYTHON_AVOID_BORROWED_REFS
+  #define CYTHON_AVOID_BORROWED_REFS 1
+  #undef CYTHON_ASSUME_SAFE_MACROS
+  #define CYTHON_ASSUME_SAFE_MACROS 0
+  #undef CYTHON_UNPACK_METHODS
+  #define CYTHON_UNPACK_METHODS 0
+  #undef CYTHON_FAST_THREAD_STATE
+  #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_PYCALL
+  #define CYTHON_FAST_PYCALL 0
+  #undef CYTHON_PEP489_MULTI_PHASE_INIT
+  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #undef CYTHON_USE_TP_FINALIZE
+  #define CYTHON_USE_TP_FINALIZE 0
+#elif defined(PYSTON_VERSION)
+  #define CYTHON_COMPILING_IN_PYPY 0
+  #define CYTHON_COMPILING_IN_PYSTON 1
+  #define CYTHON_COMPILING_IN_CPYTHON 0
+  #ifndef CYTHON_USE_TYPE_SLOTS
+    #define CYTHON_USE_TYPE_SLOTS 1
+  #endif
+  #undef CYTHON_USE_PYTYPE_LOOKUP
+  #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #undef CYTHON_USE_ASYNC_SLOTS
+  #define CYTHON_USE_ASYNC_SLOTS 0
+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #ifndef CYTHON_USE_UNICODE_INTERNALS
+    #define CYTHON_USE_UNICODE_INTERNALS 1
+  #endif
+  #undef CYTHON_USE_UNICODE_WRITER
+  #define CYTHON_USE_UNICODE_WRITER 0
+  #undef CYTHON_USE_PYLONG_INTERNALS
+  #define CYTHON_USE_PYLONG_INTERNALS 0
+  #ifndef CYTHON_AVOID_BORROWED_REFS
+    #define CYTHON_AVOID_BORROWED_REFS 0
+  #endif
+  #ifndef CYTHON_ASSUME_SAFE_MACROS
+    #define CYTHON_ASSUME_SAFE_MACROS 1
+  #endif
+  #ifndef CYTHON_UNPACK_METHODS
+    #define CYTHON_UNPACK_METHODS 1
+  #endif
+  #undef CYTHON_FAST_THREAD_STATE
+  #define CYTHON_FAST_THREAD_STATE 0
+  #undef CYTHON_FAST_PYCALL
+  #define CYTHON_FAST_PYCALL 0
+  #undef CYTHON_PEP489_MULTI_PHASE_INIT
+  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #undef CYTHON_USE_TP_FINALIZE
+  #define CYTHON_USE_TP_FINALIZE 0
+#else
+  #define CYTHON_COMPILING_IN_PYPY 0
+  #define CYTHON_COMPILING_IN_PYSTON 0
+  #define CYTHON_COMPILING_IN_CPYTHON 1
+  #ifndef CYTHON_USE_TYPE_SLOTS
+    #define CYTHON_USE_TYPE_SLOTS 1
+  #endif
+  #if PY_VERSION_HEX < 0x02070000
+    #undef CYTHON_USE_PYTYPE_LOOKUP
+    #define CYTHON_USE_PYTYPE_LOOKUP 0
+  #elif !defined(CYTHON_USE_PYTYPE_LOOKUP)
+    #define CYTHON_USE_PYTYPE_LOOKUP 1
+  #endif
+  #if PY_MAJOR_VERSION < 3
+    #undef CYTHON_USE_ASYNC_SLOTS
+    #define CYTHON_USE_ASYNC_SLOTS 0
+  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
+    #define CYTHON_USE_ASYNC_SLOTS 1
+  #endif
+  #if PY_VERSION_HEX < 0x02070000
+    #undef CYTHON_USE_PYLONG_INTERNALS
+    #define CYTHON_USE_PYLONG_INTERNALS 0
+  #elif !defined(CYTHON_USE_PYLONG_INTERNALS)
+    #define CYTHON_USE_PYLONG_INTERNALS 1
+  #endif
+  #ifndef CYTHON_USE_PYLIST_INTERNALS
+    #define CYTHON_USE_PYLIST_INTERNALS 1
+  #endif
+  #ifndef CYTHON_USE_UNICODE_INTERNALS
+    #define CYTHON_USE_UNICODE_INTERNALS 1
+  #endif
+  #if PY_VERSION_HEX < 0x030300F0
+    #undef CYTHON_USE_UNICODE_WRITER
+    #define CYTHON_USE_UNICODE_WRITER 0
+  #elif !defined(CYTHON_USE_UNICODE_WRITER)
+    #define CYTHON_USE_UNICODE_WRITER 1
+  #endif
+  #ifndef CYTHON_AVOID_BORROWED_REFS
+    #define CYTHON_AVOID_BORROWED_REFS 0
+  #endif
+  #ifndef CYTHON_ASSUME_SAFE_MACROS
+    #define CYTHON_ASSUME_SAFE_MACROS 1
+  #endif
+  #ifndef CYTHON_UNPACK_METHODS
+    #define CYTHON_UNPACK_METHODS 1
+  #endif
+  #ifndef CYTHON_FAST_THREAD_STATE
+    #define CYTHON_FAST_THREAD_STATE 1
+  #endif
+  #ifndef CYTHON_FAST_PYCALL
+    #define CYTHON_FAST_PYCALL 1
+  #endif
+  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
+    #define CYTHON_PEP489_MULTI_PHASE_INIT (0 && PY_VERSION_HEX >= 0x03050000)
+  #endif
+  #ifndef CYTHON_USE_TP_FINALIZE
+    #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1)
+  #endif
+#endif
+#if !defined(CYTHON_FAST_PYCCALL)
+#define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
+#endif
+#if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+  #undef SHIFT
+  #undef BASE
+  #undef MASK
+#endif
+#ifndef __has_attribute
+  #define __has_attribute(x) 0
+#endif
+#ifndef __has_cpp_attribute
+  #define __has_cpp_attribute(x) 0
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
+#endif
+#ifndef CYTHON_UNUSED
+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
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+#ifndef CYTHON_MAYBE_UNUSED_VAR
+#  if defined(__cplusplus)
+     template<class T> void CYTHON_MAYBE_UNUSED_VAR( const T& ) { }
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+#    define CYTHON_MAYBE_UNUSED_VAR(x) (void)(x)
+#  endif
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+#ifndef CYTHON_NCP_UNUSED
+# if CYTHON_COMPILING_IN_CPYTHON
+#  define CYTHON_NCP_UNUSED
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+#  define CYTHON_NCP_UNUSED CYTHON_UNUSED
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+#define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None)
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+    #ifndef _MSC_STDINT_H_
+        #if _MSC_VER < 1300
+           typedef unsigned char     uint8_t;
+           typedef unsigned int      uint32_t;
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+           typedef unsigned __int8   uint8_t;
+           typedef unsigned __int32  uint32_t;
+        #endif
+    #endif
 #else
-#define CYTHON_COMPILING_IN_PYPY 0
-#define CYTHON_COMPILING_IN_CPYTHON 1
+   #include <stdint.h>
+#endif
+#ifndef CYTHON_FALLTHROUGH
+  #if defined(__cplusplus) && __cplusplus >= 201103L
+    #if __has_cpp_attribute(fallthrough)
+      #define CYTHON_FALLTHROUGH [[fallthrough]]
+    #elif __has_cpp_attribute(clang::fallthrough)
+      #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
+    #elif __has_cpp_attribute(gnu::fallthrough)
+      #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
+    #endif
+  #endif
+  #ifndef CYTHON_FALLTHROUGH
+    #if __has_attribute(fallthrough)
+      #define CYTHON_FALLTHROUGH __attribute__((fallthrough))
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+      #define CYTHON_FALLTHROUGH
+    #endif
+  #endif
+  #if defined(__clang__ ) && defined(__apple_build_version__)
+    #if __apple_build_version__ < 7000000
+      #undef  CYTHON_FALLTHROUGH
+      #define CYTHON_FALLTHROUGH
+    #endif
+  #endif
+#endif
+
+#ifndef CYTHON_INLINE
+  #if defined(__clang__)
+    #define CYTHON_INLINE __inline__ __attribute__ ((__unused__))
+  #elif defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
 #endif
-#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600
-#define Py_OptimizeFlag 0
+
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag)
+  #define Py_OptimizeFlag 0
 #endif
 #define __PYX_BUILD_PY_SSIZE_T "n"
 #define CYTHON_FORMAT_SSIZE_T "z"
 #if PY_MAJOR_VERSION < 3
   #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
-  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
   #define __Pyx_DefaultClassType PyClass_Type
 #else
   #define __Pyx_BUILTIN_MODULE_NAME "builtins"
-  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos) \
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
           PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
   #define __Pyx_DefaultClassType PyType_Type
 #endif
-#if PY_MAJOR_VERSION >= 3
+#ifndef Py_TPFLAGS_CHECKTYPES
   #define Py_TPFLAGS_CHECKTYPES 0
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+#ifndef Py_TPFLAGS_HAVE_INDEX
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 #endif
-#if PY_VERSION_HEX < 0x030400a1 && !defined(Py_TPFLAGS_HAVE_FINALIZE)
+#ifndef Py_TPFLAGS_HAVE_FINALIZE
   #define Py_TPFLAGS_HAVE_FINALIZE 0
 #endif
+#if PY_VERSION_HEX <= 0x030700A3 || !defined(METH_FASTCALL)
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+     #define METH_FASTCALL 0x80
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+  typedef PyObject *(*__Pyx_PyCFunctionFast) (PyObject *self, PyObject *const *args, Py_ssize_t nargs);
+  typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject *const *args,
+                                                          Py_ssize_t nargs, PyObject *kwnames);
+#else
+  #define __Pyx_PyCFunctionFast _PyCFunctionFast
+  #define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords
+#endif
+#if CYTHON_FAST_PYCCALL
+#define __Pyx_PyFastCFunction_Check(func)\
+    ((PyCFunction_Check(func) && (METH_FASTCALL == (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS)))))
+#else
+#define __Pyx_PyFastCFunction_Check(func) 0
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
+  #define PyObject_Malloc(s)   PyMem_Malloc(s)
+  #define PyObject_Free(p)     PyMem_Free(p)
+  #define PyObject_Realloc(p)  PyMem_Realloc(p)
+#endif
+#if CYTHON_COMPILING_IN_PYSTON
+  #define __Pyx_PyCode_HasFreeVars(co)  PyCode_HasFreeVars(co)
+  #define __Pyx_PyFrame_SetLineNumber(frame, lineno) PyFrame_SetLineNumber(frame, lineno)
+#else
+  #define __Pyx_PyCode_HasFreeVars(co)  (PyCode_GetNumFree(co) > 0)
+  #define __Pyx_PyFrame_SetLineNumber(frame, lineno)  (frame)->f_lineno = (lineno)
+#endif
+#if !CYTHON_FAST_THREAD_STATE || PY_VERSION_HEX < 0x02070000
+  #define __Pyx_PyThreadState_Current PyThreadState_GET()
+#elif PY_VERSION_HEX >= 0x03060000
+  #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet()
+#elif PY_VERSION_HEX >= 0x03000000
+  #define __Pyx_PyThreadState_Current PyThreadState_GET()
+#else
+  #define __Pyx_PyThreadState_Current _PyThreadState_Current
+#endif
+#if PY_VERSION_HEX < 0x030700A2 && !defined(PyThread_tss_create) && !defined(Py_tss_NEEDS_INIT)
+#include "pythread.h"
+#define Py_tss_NEEDS_INIT 0
+typedef int Py_tss_t;
+static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
+  *key = PyThread_create_key();
+  return 0; // PyThread_create_key reports success always
+}
+static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
+  Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
+  *key = Py_tss_NEEDS_INIT;
+  return key;
+}
+static CYTHON_INLINE void PyThread_tss_free(Py_tss_t *key) {
+  PyObject_Free(key);
+}
+static CYTHON_INLINE int PyThread_tss_is_created(Py_tss_t *key) {
+  return *key != Py_tss_NEEDS_INIT;
+}
+static CYTHON_INLINE void PyThread_tss_delete(Py_tss_t *key) {
+  PyThread_delete_key(*key);
+  *key = Py_tss_NEEDS_INIT;
+}
+static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
+  return PyThread_set_key_value(*key, value);
+}
+static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
+  return PyThread_get_key_value(*key);
+}
+#endif // TSS (Thread Specific Storage) API
+#if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
+#define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
+#else
+#define __Pyx_PyDict_NewPresized(n)  PyDict_New()
+#endif
+#if PY_MAJOR_VERSION >= 3 || CYTHON_FUTURE_DIVISION
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
+#else
+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
+  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 && CYTHON_USE_UNICODE_INTERNALS
+#define __Pyx_PyDict_GetItemStr(dict, name)  _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash)
+#else
+#define __Pyx_PyDict_GetItemStr(dict, name)  PyDict_GetItem(dict, name)
+#endif
 #if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
   #define CYTHON_PEP393_ENABLED 1
-  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ? \
+  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ?\
                                               0 : _PyUnicode_Ready((PyObject *)(op)))
   #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
   #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
+  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   PyUnicode_MAX_CHAR_VALUE(u)
   #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
   #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
   #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
+  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
 #else
   #define CYTHON_PEP393_ENABLED 0
+  #define PyUnicode_1BYTE_KIND  1
+  #define PyUnicode_2BYTE_KIND  2
+  #define PyUnicode_4BYTE_KIND  4
   #define __Pyx_PyUnicode_READY(op)       (0)
   #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
   #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
+  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((sizeof(Py_UNICODE) == 2) ? 65535 : 1114111)
   #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
   #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
   #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
+  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  (((void)(k)), ((Py_UNICODE*)d)[i] = ch)
+  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_SIZE(u))
 #endif
 #if CYTHON_COMPILING_IN_PYPY
   #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
   #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
-  #define __Pyx_PyFrozenSet_Size(s)         PyObject_Size(s)
 #else
   #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
-  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ? \
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ?\
       PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
-  #define __Pyx_PyFrozenSet_Size(s)         PySet_Size(s)
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyUnicode_Contains)
+  #define PyUnicode_Contains(u, s)  PySequence_Contains(u, s)
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyByteArray_Check)
+  #define PyByteArray_Check(obj)  PyObject_TypeCheck(obj, &PyByteArray_Type)
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Format)
+  #define PyObject_Format(obj, fmt)  PyObject_CallMethod(obj, "__format__", "O", fmt)
 #endif
 #define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
 #define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
@@ -113,12 +463,16 @@
 #else
   #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
 #endif
+#if PY_MAJOR_VERSION < 3 && !defined(PyObject_ASCII)
+  #define PyObject_ASCII(o)            PyObject_Repr(o)
+#endif
 #if PY_MAJOR_VERSION >= 3
   #define PyBaseString_Type            PyUnicode_Type
   #define PyStringObject               PyUnicodeObject
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+  #define PyObject_Unicode             PyObject_Str
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
@@ -130,7 +484,11 @@
 #ifndef PySet_CheckExact
   #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
 #endif
-#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#if CYTHON_ASSUME_SAFE_MACROS
+  #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
+#else
+  #define __Pyx_PySequence_SIZE(seq)  PySequence_Size(seq)
+#endif
 #if PY_MAJOR_VERSION >= 3
   #define PyIntObject                  PyLongObject
   #define PyInt_Type                   PyLong_Type
@@ -165,59 +523,52 @@
   #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
 #endif
 #if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
 #else
   #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
 #endif
-#ifndef CYTHON_INLINE
-  #if defined(__GNUC__)
-    #define CYTHON_INLINE __inline__
-  #elif defined(_MSC_VER)
-    #define CYTHON_INLINE __inline
-  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-    #define CYTHON_INLINE inline
+#if CYTHON_USE_ASYNC_SLOTS
+  #if PY_VERSION_HEX >= 0x030500B1
+    #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods
+    #define __Pyx_PyType_AsAsync(obj) (Py_TYPE(obj)->tp_as_async)
   #else
-    #define CYTHON_INLINE
+    #define __Pyx_PyType_AsAsync(obj) ((__Pyx_PyAsyncMethodsStruct*) (Py_TYPE(obj)->tp_reserved))
   #endif
+#else
+  #define __Pyx_PyType_AsAsync(obj) NULL
 #endif
-#ifndef CYTHON_RESTRICT
-  #if defined(__GNUC__)
-    #define CYTHON_RESTRICT __restrict__
-  #elif defined(_MSC_VER) && _MSC_VER >= 1400
-    #define CYTHON_RESTRICT __restrict
-  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-    #define CYTHON_RESTRICT restrict
-  #else
-    #define CYTHON_RESTRICT
-  #endif
+#ifndef __Pyx_PyAsyncMethodsStruct
+    typedef struct {
+        unaryfunc am_await;
+        unaryfunc am_aiter;
+        unaryfunc am_anext;
+    } __Pyx_PyAsyncMethodsStruct;
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+  #define _USE_MATH_DEFINES
 #endif
+#include <math.h>
 #ifdef NAN
 #define __PYX_NAN() ((float) NAN)
 #else
 static CYTHON_INLINE float __PYX_NAN() {
-  /* Initialize NaN. The sign is irrelevant, an exponent with all bits 1 and
-   a nonzero mantissa means NaN. If the first bit in the mantissa is 1, it is
-   a quiet NaN. */
   float value;
   memset(&value, 0xFF, sizeof(value));
   return value;
 }
 #endif
-#ifdef __cplusplus
-template<typename T>
-void __Pyx_call_destructor(T* x) {
-    x->~T();
-}
+#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL)
+#define __Pyx_truncl trunc
+#else
+#define __Pyx_truncl truncl
 #endif
 
 
-#if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
-  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
-#else
-  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
-  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
-#endif
+#define __PYX_ERR(f_index, lineno, Ln_error) \
+{ \
+  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
+}
 
 #ifndef __PYX_EXTERN_C
   #ifdef __cplusplus
@@ -227,35 +578,19 @@ void __Pyx_call_destructor(T* x) {
   #endif
 #endif
 
-#if defined(WIN32) || defined(MS_WINDOWS)
-#define _USE_MATH_DEFINES
-#endif
-#include <math.h>
-#define __PYX_HAVE__pvlib__spa_c_files__spa_py
-#define __PYX_HAVE_API__pvlib__spa_c_files__spa_py
+#define __PYX_HAVE__spa_py
+#define __PYX_HAVE_API__spa_py
+/* Early includes */
 #include "spa.h"
 #ifdef _OPENMP
 #include <omp.h>
 #endif /* _OPENMP */
 
-#ifdef PYREX_WITHOUT_ASSERTIONS
+#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)
 #define CYTHON_WITHOUT_ASSERTIONS
 #endif
 
-#ifndef CYTHON_UNUSED
-# if defined(__GNUC__)
-#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
-#     define CYTHON_UNUSED __attribute__ ((__unused__))
-#   else
-#     define CYTHON_UNUSED
-#   endif
-# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
-#   define CYTHON_UNUSED __attribute__ ((__unused__))
-# else
-#   define CYTHON_UNUSED
-# endif
-#endif
-typedef struct {PyObject **p; char *s; const Py_ssize_t n; const char* encoding;
+typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding;
                 const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
 
 #define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
@@ -263,18 +598,36 @@ typedef struct {PyObject **p; char *s; const Py_ssize_t n; const char* encoding;
 #define __PYX_DEFAULT_STRING_ENCODING ""
 #define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
 #define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
-#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (    \
-    (sizeof(type) < sizeof(Py_ssize_t))  ||             \
-    (sizeof(type) > sizeof(Py_ssize_t) &&               \
-          likely(v < (type)PY_SSIZE_T_MAX ||            \
-                 v == (type)PY_SSIZE_T_MAX)  &&         \
-          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||       \
-                                v == (type)PY_SSIZE_T_MIN)))  ||  \
-    (sizeof(type) == sizeof(Py_ssize_t) &&              \
-          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||        \
+#define __Pyx_uchar_cast(c) ((unsigned char)c)
+#define __Pyx_long_cast(x) ((long)x)
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (\
+    (sizeof(type) < sizeof(Py_ssize_t))  ||\
+    (sizeof(type) > sizeof(Py_ssize_t) &&\
+          likely(v < (type)PY_SSIZE_T_MAX ||\
+                 v == (type)PY_SSIZE_T_MAX)  &&\
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\
+                                v == (type)PY_SSIZE_T_MIN)))  ||\
+    (sizeof(type) == sizeof(Py_ssize_t) &&\
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\
                                v == (type)PY_SSIZE_T_MAX)))  )
-static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject*);
-static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#if defined (__cplusplus) && __cplusplus >= 201103L
+    #include <cstdlib>
+    #define __Pyx_sst_abs(value) std::abs(value)
+#elif SIZEOF_INT >= SIZEOF_SIZE_T
+    #define __Pyx_sst_abs(value) abs(value)
+#elif SIZEOF_LONG >= SIZEOF_SIZE_T
+    #define __Pyx_sst_abs(value) labs(value)
+#elif defined (_MSC_VER)
+    #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value))
+#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define __Pyx_sst_abs(value) llabs(value)
+#elif defined (__GNUC__)
+    #define __Pyx_sst_abs(value) __builtin_llabs(value)
+#else
+    #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
+#endif
+static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
 #define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
 #define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
 #define __Pyx_PyBytes_FromString        PyBytes_FromString
@@ -287,38 +640,51 @@ static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
     #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
     #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
 #endif
-#define __Pyx_PyObject_AsSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_FromUString(s)  __Pyx_PyObject_FromString((const char*)s)
-#define __Pyx_PyBytes_FromUString(s)   __Pyx_PyBytes_FromString((const char*)s)
-#define __Pyx_PyByteArray_FromUString(s)   __Pyx_PyByteArray_FromString((const char*)s)
-#define __Pyx_PyStr_FromUString(s)     __Pyx_PyStr_FromString((const char*)s)
-#define __Pyx_PyUnicode_FromUString(s) __Pyx_PyUnicode_FromString((const char*)s)
-#if PY_MAJOR_VERSION < 3
-static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
-{
+#define __Pyx_PyBytes_AsWritableString(s)     ((char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsWritableSString(s)    ((signed char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsWritableUString(s)    ((unsigned char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyObject_AsWritableString(s)    ((char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
     const Py_UNICODE *u_end = u;
     while (*u_end++) ;
     return (size_t)(u_end - u - 1);
 }
-#else
-#define __Pyx_Py_UNICODE_strlen Py_UNICODE_strlen
-#endif
 #define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
 #define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
-#define __Pyx_Owned_Py_None(b) (Py_INCREF(Py_None), Py_None)
-#define __Pyx_PyBool_FromLong(b) ((b) ? (Py_INCREF(Py_True), Py_True) : (Py_INCREF(Py_False), Py_False))
+#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
+#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
 static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
-static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
+#define __Pyx_PySequence_Tuple(obj)\
+    (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj))
 static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
-#if CYTHON_COMPILING_IN_CPYTHON
+#if CYTHON_ASSUME_SAFE_MACROS
 #define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
 #else
 #define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
 #endif
 #define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x))
+#else
+#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
+#endif
+#define __Pyx_PyNumber_Float(x) (PyFloat_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Float(x))
 #if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
 static int __Pyx_sys_getdefaultencoding_not_ascii;
 static int __Pyx_init_sys_getdefaultencoding_params(void) {
@@ -329,7 +695,7 @@ static int __Pyx_init_sys_getdefaultencoding_params(void) {
     const char* default_encoding_c;
     sys = PyImport_ImportModule("sys");
     if (!sys) goto bad;
-    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL);
     Py_DECREF(sys);
     if (!default_encoding) goto bad;
     default_encoding_c = PyBytes_AsString(default_encoding);
@@ -403,12 +769,15 @@ static int __Pyx_init_sys_getdefaultencoding_params(void) {
   #define likely(x)   (x)
   #define unlikely(x) (x)
 #endif /* __GNUC__ */
+static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
 
-static PyObject *__pyx_m;
+static PyObject *__pyx_m = NULL;
 static PyObject *__pyx_d;
 static PyObject *__pyx_b;
+static PyObject *__pyx_cython_runtime = NULL;
 static PyObject *__pyx_empty_tuple;
 static PyObject *__pyx_empty_bytes;
+static PyObject *__pyx_empty_unicode;
 static int __pyx_lineno;
 static int __pyx_clineno = 0;
 static const char * __pyx_cfilenm= __FILE__;
@@ -416,10 +785,13 @@ static const char *__pyx_filename;
 
 
 static const char *__pyx_f[] = {
-  "pvlib/spa_c_files/spa_py.pyx",
+  "spa_py.pyx",
 };
 
 /*--- Type declarations ---*/
+
+/* --- Runtime support code (head) --- */
+/* Refnanny.proto */
 #ifndef CYTHON_REFNANNY
   #define CYTHON_REFNANNY 0
 #endif
@@ -436,19 +808,19 @@ static const char *__pyx_f[] = {
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   #define __Pyx_RefNannyDeclarations void *__pyx_refnanny = NULL;
 #ifdef WITH_THREAD
-  #define __Pyx_RefNannySetupContext(name, acquire_gil) \
-          if (acquire_gil) { \
-              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure(); \
-              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__); \
-              PyGILState_Release(__pyx_gilstate_save); \
-          } else { \
-              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__); \
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
+          if (acquire_gil) {\
+              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__);\
+              PyGILState_Release(__pyx_gilstate_save);\
+          } else {\
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__);\
           }
 #else
-  #define __Pyx_RefNannySetupContext(name, acquire_gil) \
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
           __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__)
 #endif
-  #define __Pyx_RefNannyFinishContext() \
+  #define __Pyx_RefNannyFinishContext()\
           __Pyx_RefNanny->FinishContext(&__pyx_refnanny)
   #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
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@@ -471,29 +843,83 @@ static const char *__pyx_f[] = {
   #define __Pyx_XGOTREF(r)
   #define __Pyx_XGIVEREF(r)
 #endif
-#define __Pyx_XDECREF_SET(r, v) do {                            \
-        PyObject *tmp = (PyObject *) r;                         \
-        r = v; __Pyx_XDECREF(tmp);                              \
+#define __Pyx_XDECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; __Pyx_XDECREF(tmp);\
     } while (0)
-#define __Pyx_DECREF_SET(r, v) do {                             \
-        PyObject *tmp = (PyObject *) r;                         \
-        r = v; __Pyx_DECREF(tmp);                               \
+#define __Pyx_DECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; __Pyx_DECREF(tmp);\
     } while (0)
 #define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
 #define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
 
+/* RaiseArgTupleInvalid.proto */
 static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
     Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
 
+/* RaiseDoubleKeywords.proto */
 static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
 
-static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[], \
-    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args, \
+/* ParseKeywords.proto */
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
     const char* function_name);
 
+/* PyObjectGetAttrStr.proto */
+#if CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name);
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+/* PyThreadStateGet.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
+#define __Pyx_PyThreadState_assign  __pyx_tstate = __Pyx_PyThreadState_Current;
+#define __Pyx_PyErr_Occurred()  __pyx_tstate->curexc_type
+#else
+#define __Pyx_PyThreadState_declare
+#define __Pyx_PyThreadState_assign
+#define __Pyx_PyErr_Occurred()  PyErr_Occurred()
+#endif
+
+/* PyErrFetchRestore.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)    __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)    __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL))
+#else
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#endif
+#else
+#define __Pyx_PyErr_Clear() PyErr_Clear()
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestoreInState(tstate, type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchInState(tstate, type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
+#endif
+
+/* CLineInTraceback.proto */
+#ifdef CYTHON_CLINE_IN_TRACEBACK
+#define __Pyx_CLineForTraceback(tstate, c_line)  (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0)
+#else
+static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line);
+#endif
+
+/* CodeObjectCache.proto */
 typedef struct {
-    int code_line;
     PyCodeObject* code_object;
+    int code_line;
 } __Pyx_CodeObjectCacheEntry;
 struct __Pyx_CodeObjectCache {
     int count;
@@ -505,69 +931,91 @@ static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int co
 static PyCodeObject *__pyx_find_code_object(int code_line);
 static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
 
+/* AddTraceback.proto */
 static void __Pyx_AddTraceback(const char *funcname, int c_line,
                                int py_line, const char *filename);
 
-static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
-
+/* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
 
 static PyObject* __pyx_convert__to_py_spa_data(spa_data s);
+/* CIntFromPy.proto */
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+
+/* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
 
+/* CIntFromPy.proto */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
 
+/* FastTypeChecks.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type)
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2);
+#else
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type)
+#define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2))
+#endif
+#define __Pyx_PyException_Check(obj) __Pyx_TypeCheck(obj, PyExc_Exception)
+
+/* CheckBinaryVersion.proto */
 static int __Pyx_check_binary_version(void);
 
+/* InitStrings.proto */
 static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
 
 
-/* Module declarations from 'pvlib.spa_c_files.cspa_py' */
-
-/* Module declarations from 'pvlib.spa_c_files.spa_py' */
-#define __Pyx_MODULE_NAME "pvlib.spa_c_files.spa_py"
-int __pyx_module_is_main_pvlib__spa_c_files__spa_py = 0;
-
-/* Implementation of 'pvlib.spa_c_files.spa_py' */
-static PyObject *__pyx_pf_5pvlib_11spa_c_files_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_timezone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t); /* proto */
-static char __pyx_k_e[] = "e";
-static char __pyx_k_e0[] = "e0";
-static char __pyx_k_day[] = "day";
-static char __pyx_k_err[] = "err";
-static char __pyx_k_spa[] = "spa";
-static char __pyx_k_hour[] = "hour";
-static char __pyx_k_main[] = "__main__";
-static char __pyx_k_test[] = "__test__";
-static char __pyx_k_year[] = "year";
-static char __pyx_k_month[] = "month";
-static char __pyx_k_slope[] = "slope";
-static char __pyx_k_minute[] = "minute";
-static char __pyx_k_second[] = "second";
-static char __pyx_k_sunset[] = "sunset";
-static char __pyx_k_zenith[] = "zenith";
-static char __pyx_k_azimuth[] = "azimuth";
-static char __pyx_k_delta_t[] = "delta_t";
-static char __pyx_k_sunrise[] = "sunrise";
-static char __pyx_k_function[] = "function";
-static char __pyx_k_latitude[] = "latitude";
-static char __pyx_k_pressure[] = "pressure";
-static char __pyx_k_spa_calc[] = "spa_calc";
-static char __pyx_k_timezone[] = "timezone";
-static char __pyx_k_delta_ut1[] = "delta_ut1";
-static char __pyx_k_elevation[] = "elevation";
-static char __pyx_k_incidence[] = "incidence";
-static char __pyx_k_longitude[] = "longitude";
-static char __pyx_k_suntransit[] = "suntransit";
-static char __pyx_k_temperature[] = "temperature";
-static char __pyx_k_azm_rotation[] = "azm_rotation";
-static char __pyx_k_atmos_refract[] = "atmos_refract";
-static char __pyx_k_azimuth_astro[] = "azimuth_astro";
-static char __pyx_k_pvlib_spa_c_files_spa_py[] = "pvlib.spa_c_files.spa_py";
-static char __pyx_k_home_tony_git_repos_pvlib_pytho[] = "/home/tony/git_repos/pvlib-python/pvlib/spa_c_files/spa_py.pyx";
+/* Module declarations from 'cspa_py' */
+
+/* Module declarations from 'spa_py' */
+#define __Pyx_MODULE_NAME "spa_py"
+extern int __pyx_module_is_main_spa_py;
+int __pyx_module_is_main_spa_py = 0;
+
+/* Implementation of 'spa_py' */
+static const char __pyx_k_e[] = "e";
+static const char __pyx_k_e0[] = "e0";
+static const char __pyx_k_day[] = "day";
+static const char __pyx_k_err[] = "err";
+static const char __pyx_k_spa[] = "spa";
+static const char __pyx_k_hour[] = "hour";
+static const char __pyx_k_main[] = "__main__";
+static const char __pyx_k_test[] = "__test__";
+static const char __pyx_k_year[] = "year";
+static const char __pyx_k_month[] = "month";
+static const char __pyx_k_slope[] = "slope";
+static const char __pyx_k_minute[] = "minute";
+static const char __pyx_k_second[] = "second";
+static const char __pyx_k_spa_py[] = "spa_py";
+static const char __pyx_k_sunset[] = "sunset";
+static const char __pyx_k_zenith[] = "zenith";
+static const char __pyx_k_azimuth[] = "azimuth";
+static const char __pyx_k_delta_t[] = "delta_t";
+static const char __pyx_k_sunrise[] = "sunrise";
+static const char __pyx_k_function[] = "function";
+static const char __pyx_k_latitude[] = "latitude";
+static const char __pyx_k_pressure[] = "pressure";
+static const char __pyx_k_spa_calc[] = "spa_calc";
+static const char __pyx_k_delta_ut1[] = "delta_ut1";
+static const char __pyx_k_elevation[] = "elevation";
+static const char __pyx_k_incidence[] = "incidence";
+static const char __pyx_k_longitude[] = "longitude";
+static const char __pyx_k_time_zone[] = "time_zone";
+static const char __pyx_k_spa_py_pyx[] = "spa_py.pyx";
+static const char __pyx_k_suntransit[] = "suntransit";
+static const char __pyx_k_temperature[] = "temperature";
+static const char __pyx_k_azm_rotation[] = "azm_rotation";
+static const char __pyx_k_atmos_refract[] = "atmos_refract";
+static const char __pyx_k_azimuth_astro[] = "azimuth_astro";
+static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static PyObject *__pyx_n_s_atmos_refract;
 static PyObject *__pyx_n_s_azimuth;
 static PyObject *__pyx_n_s_azimuth_astro;
 static PyObject *__pyx_n_s_azm_rotation;
+static PyObject *__pyx_n_s_cline_in_traceback;
 static PyObject *__pyx_n_s_day;
 static PyObject *__pyx_n_s_delta_t;
 static PyObject *__pyx_n_s_delta_ut1;
@@ -576,7 +1024,6 @@ static PyObject *__pyx_n_s_e0;
 static PyObject *__pyx_n_s_elevation;
 static PyObject *__pyx_n_s_err;
 static PyObject *__pyx_n_s_function;
-static PyObject *__pyx_kp_s_home_tony_git_repos_pvlib_pytho;
 static PyObject *__pyx_n_s_hour;
 static PyObject *__pyx_n_s_incidence;
 static PyObject *__pyx_n_s_latitude;
@@ -585,144 +1032,169 @@ static PyObject *__pyx_n_s_main;
 static PyObject *__pyx_n_s_minute;
 static PyObject *__pyx_n_s_month;
 static PyObject *__pyx_n_s_pressure;
-static PyObject *__pyx_n_s_pvlib_spa_c_files_spa_py;
 static PyObject *__pyx_n_s_second;
 static PyObject *__pyx_n_s_slope;
 static PyObject *__pyx_n_s_spa;
 static PyObject *__pyx_n_s_spa_calc;
+static PyObject *__pyx_n_s_spa_py;
+static PyObject *__pyx_kp_s_spa_py_pyx;
 static PyObject *__pyx_n_s_sunrise;
 static PyObject *__pyx_n_s_sunset;
 static PyObject *__pyx_n_s_suntransit;
 static PyObject *__pyx_n_s_temperature;
 static PyObject *__pyx_n_s_test;
-static PyObject *__pyx_n_s_timezone;
+static PyObject *__pyx_n_s_time_zone;
 static PyObject *__pyx_n_s_year;
 static PyObject *__pyx_n_s_zenith;
+static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t); /* proto */
 static PyObject *__pyx_tuple_;
 static PyObject *__pyx_codeobj__2;
+/* Late includes */
 
-/* "pvlib/spa_c_files/spa_py.pyx":3
+/* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year,month,day,hour,minute,second,timezone,latitude,longitude,elevation,pressure,temperature,delta_t):             # <<<<<<<<<<<<<<
- * 	cdef cspa_py.spa_data spa
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):             # <<<<<<<<<<<<<<
+ *     cdef cspa_py.spa_data spa
  * 
  */
 
 /* Python wrapper */
-static PyObject *__pyx_pw_5pvlib_11spa_c_files_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_5pvlib_11spa_c_files_6spa_py_1spa_calc = {"spa_calc", (PyCFunction)__pyx_pw_5pvlib_11spa_c_files_6spa_py_1spa_calc, METH_VARARGS|METH_KEYWORDS, 0};
-static PyObject *__pyx_pw_5pvlib_11spa_c_files_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_6spa_py_1spa_calc = {"spa_calc", (PyCFunction)__pyx_pw_6spa_py_1spa_calc, METH_VARARGS|METH_KEYWORDS, 0};
+static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_year = 0;
   PyObject *__pyx_v_month = 0;
   PyObject *__pyx_v_day = 0;
   PyObject *__pyx_v_hour = 0;
   PyObject *__pyx_v_minute = 0;
   PyObject *__pyx_v_second = 0;
-  PyObject *__pyx_v_timezone = 0;
+  PyObject *__pyx_v_time_zone = 0;
   PyObject *__pyx_v_latitude = 0;
   PyObject *__pyx_v_longitude = 0;
   PyObject *__pyx_v_elevation = 0;
   PyObject *__pyx_v_pressure = 0;
   PyObject *__pyx_v_temperature = 0;
   PyObject *__pyx_v_delta_t = 0;
-  int __pyx_lineno = 0;
-  const char *__pyx_filename = NULL;
-  int __pyx_clineno = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("spa_calc (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_timezone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,0};
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_time_zone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,0};
     PyObject* values[13] = {0,0,0,0,0,0,0,0,0,0,0,0,0};
     if (unlikely(__pyx_kwds)) {
       Py_ssize_t kw_args;
       const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
       switch (pos_args) {
         case 13: values[12] = PyTuple_GET_ITEM(__pyx_args, 12);
+        CYTHON_FALLTHROUGH;
         case 12: values[11] = PyTuple_GET_ITEM(__pyx_args, 11);
+        CYTHON_FALLTHROUGH;
         case 11: values[10] = PyTuple_GET_ITEM(__pyx_args, 10);
+        CYTHON_FALLTHROUGH;
         case 10: values[9] = PyTuple_GET_ITEM(__pyx_args, 9);
+        CYTHON_FALLTHROUGH;
         case  9: values[8] = PyTuple_GET_ITEM(__pyx_args, 8);
+        CYTHON_FALLTHROUGH;
         case  8: values[7] = PyTuple_GET_ITEM(__pyx_args, 7);
+        CYTHON_FALLTHROUGH;
         case  7: values[6] = PyTuple_GET_ITEM(__pyx_args, 6);
+        CYTHON_FALLTHROUGH;
         case  6: values[5] = PyTuple_GET_ITEM(__pyx_args, 5);
+        CYTHON_FALLTHROUGH;
         case  5: values[4] = PyTuple_GET_ITEM(__pyx_args, 4);
+        CYTHON_FALLTHROUGH;
         case  4: values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
+        CYTHON_FALLTHROUGH;
         case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
+        CYTHON_FALLTHROUGH;
         case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+        CYTHON_FALLTHROUGH;
         case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+        CYTHON_FALLTHROUGH;
         case  0: break;
         default: goto __pyx_L5_argtuple_error;
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       kw_args = PyDict_Size(__pyx_kwds);
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-        if (likely((values[1] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_month)) != 0)) kw_args--;
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-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 1); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 1); __PYX_ERR(0, 3, __pyx_L3_error)
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+        CYTHON_FALLTHROUGH;
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-        if (likely((values[2] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_day)) != 0)) kw_args--;
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+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 2); __PYX_ERR(0, 3, __pyx_L3_error)
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+        CYTHON_FALLTHROUGH;
         case  3:
-        if (likely((values[3] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_hour)) != 0)) kw_args--;
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+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 3); __PYX_ERR(0, 3, __pyx_L3_error)
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-        if (likely((values[4] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_minute)) != 0)) kw_args--;
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+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 4); __PYX_ERR(0, 3, __pyx_L3_error)
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+        CYTHON_FALLTHROUGH;
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-        if (likely((values[5] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_second)) != 0)) kw_args--;
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+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 5); __PYX_ERR(0, 3, __pyx_L3_error)
         }
+        CYTHON_FALLTHROUGH;
         case  6:
-        if (likely((values[6] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_timezone)) != 0)) kw_args--;
+        if (likely((values[6] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_time_zone)) != 0)) kw_args--;
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+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 6); __PYX_ERR(0, 3, __pyx_L3_error)
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+        CYTHON_FALLTHROUGH;
         case  7:
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-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 7); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 7); __PYX_ERR(0, 3, __pyx_L3_error)
         }
+        CYTHON_FALLTHROUGH;
         case  8:
-        if (likely((values[8] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_longitude)) != 0)) kw_args--;
+        if (likely((values[8] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_longitude)) != 0)) kw_args--;
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-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 8); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 8); __PYX_ERR(0, 3, __pyx_L3_error)
         }
+        CYTHON_FALLTHROUGH;
         case  9:
-        if (likely((values[9] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_elevation)) != 0)) kw_args--;
+        if (likely((values[9] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_elevation)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 9); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 9); __PYX_ERR(0, 3, __pyx_L3_error)
         }
+        CYTHON_FALLTHROUGH;
         case 10:
-        if (likely((values[10] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_pressure)) != 0)) kw_args--;
+        if (likely((values[10] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_pressure)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 10); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 10); __PYX_ERR(0, 3, __pyx_L3_error)
         }
+        CYTHON_FALLTHROUGH;
         case 11:
-        if (likely((values[11] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_temperature)) != 0)) kw_args--;
+        if (likely((values[11] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_temperature)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 11); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 11); __PYX_ERR(0, 3, __pyx_L3_error)
         }
+        CYTHON_FALLTHROUGH;
         case 12:
-        if (likely((values[12] = PyDict_GetItem(__pyx_kwds, __pyx_n_s_delta_t)) != 0)) kw_args--;
+        if (likely((values[12] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_delta_t)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 12); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 12); __PYX_ERR(0, 3, __pyx_L3_error)
         }
       }
       if (unlikely(kw_args > 0)) {
-        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "spa_calc") < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "spa_calc") < 0)) __PYX_ERR(0, 3, __pyx_L3_error)
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     __pyx_v_hour = values[3];
     __pyx_v_minute = values[4];
     __pyx_v_second = values[5];
-    __pyx_v_timezone = values[6];
+    __pyx_v_time_zone = values[6];
     __pyx_v_latitude = values[7];
     __pyx_v_longitude = values[8];
     __pyx_v_elevation = values[9];
@@ -757,20 +1229,20 @@ static PyObject *__pyx_pw_5pvlib_11spa_c_files_6spa_py_1spa_calc(PyObject *__pyx
   }
   goto __pyx_L4_argument_unpacking_done;
   __pyx_L5_argtuple_error:;
-  __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, PyTuple_GET_SIZE(__pyx_args)); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L3_error;}
+  __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 3, __pyx_L3_error)
   __pyx_L3_error:;
-  __Pyx_AddTraceback("pvlib.spa_c_files.spa_py.spa_calc", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("spa_py.spa_calc", __pyx_clineno, __pyx_lineno, __pyx_filename);
   __Pyx_RefNannyFinishContext();
   return NULL;
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+  __pyx_r = __pyx_pf_6spa_py_spa_calc(__pyx_self, __pyx_v_year, __pyx_v_month, __pyx_v_day, __pyx_v_hour, __pyx_v_minute, __pyx_v_second, __pyx_v_time_zone, __pyx_v_latitude, __pyx_v_longitude, __pyx_v_elevation, __pyx_v_pressure, __pyx_v_temperature, __pyx_v_delta_t);
 
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 }
 
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@@ -778,212 +1250,207 @@ static PyObject *__pyx_pf_5pvlib_11spa_c_files_6spa_py_spa_calc(CYTHON_UNUSED Py
   int __pyx_t_1;
   double __pyx_t_2;
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-  /* "pvlib/spa_c_files/spa_py.pyx":6
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  * 
- * 	spa.year          = year             # <<<<<<<<<<<<<<
- * 	spa.month         = month
- * 	spa.day           = day
+ *     spa.year = year             # <<<<<<<<<<<<<<
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-  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_year); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 6; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_year); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 6, __pyx_L1_error)
   __pyx_v_spa.year = __pyx_t_1;
 
-  /* "pvlib/spa_c_files/spa_py.pyx":7
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  * 
- * 	spa.year          = year
- * 	spa.month         = month             # <<<<<<<<<<<<<<
- * 	spa.day           = day
- * 	spa.hour          = hour
+ *     spa.year = year
+ *     spa.month = month             # <<<<<<<<<<<<<<
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+ *     spa.hour = hour
  */
-  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_month); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 7; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_month); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 7, __pyx_L1_error)
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-  /* "pvlib/spa_c_files/spa_py.pyx":8
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- * 	spa.month         = month
- * 	spa.day           = day             # <<<<<<<<<<<<<<
- * 	spa.hour          = hour
- * 	spa.minute        = minute
+  /* "spa_py.pyx":8
+ *     spa.year = year
+ *     spa.month = month
+ *     spa.day = day             # <<<<<<<<<<<<<<
+ *     spa.hour = hour
+ *     spa.minute = minute
  */
-  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_day); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 8; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_day); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 8, __pyx_L1_error)
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-  /* "pvlib/spa_c_files/spa_py.pyx":9
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- * 	spa.day           = day
- * 	spa.hour          = hour             # <<<<<<<<<<<<<<
- * 	spa.minute        = minute
- * 	spa.second        = second
+  /* "spa_py.pyx":9
+ *     spa.month = month
+ *     spa.day = day
+ *     spa.hour = hour             # <<<<<<<<<<<<<<
+ *     spa.minute = minute
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  */
-  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_hour); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 9; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_hour); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 9, __pyx_L1_error)
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-  /* "pvlib/spa_c_files/spa_py.pyx":10
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- * 	spa.hour          = hour
- * 	spa.minute        = minute             # <<<<<<<<<<<<<<
- * 	spa.second        = second
- * 	spa.timezone      = timezone
+  /* "spa_py.pyx":10
+ *     spa.day = day
+ *     spa.hour = hour
+ *     spa.minute = minute             # <<<<<<<<<<<<<<
+ *     spa.second = second
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  */
-  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_minute); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 10; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __pyx_v_spa.minute = __pyx_t_1;
 
-  /* "pvlib/spa_c_files/spa_py.pyx":11
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- * 	spa.second        = second             # <<<<<<<<<<<<<<
- * 	spa.timezone      = timezone
- * 	spa.delta_ut1     = 0
+  /* "spa_py.pyx":11
+ *     spa.hour = hour
+ *     spa.minute = minute
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+ *     spa.time_zone = time_zone
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  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_second); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 11; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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- * 	spa.second        = second
- * 	spa.timezone      = timezone             # <<<<<<<<<<<<<<
- * 	spa.delta_ut1     = 0
- * 	spa.delta_t       = delta_t
+  /* "spa_py.pyx":12
+ *     spa.minute = minute
+ *     spa.second = second
+ *     spa.time_zone = time_zone             # <<<<<<<<<<<<<<
+ *     spa.delta_ut1 = 0
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  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_timezone); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 12; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  /* "pvlib/spa_c_files/spa_py.pyx":13
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- * 	spa.delta_ut1     = 0             # <<<<<<<<<<<<<<
- * 	spa.delta_t       = delta_t
- * 	spa.longitude     = longitude
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_time_zone); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 12, __pyx_L1_error)
+  __pyx_v_spa.time_zone = __pyx_t_2;
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+  /* "spa_py.pyx":13
+ *     spa.second = second
+ *     spa.time_zone = time_zone
+ *     spa.delta_ut1 = 0             # <<<<<<<<<<<<<<
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   __pyx_v_spa.delta_ut1 = 0.0;
 
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- * 	spa.delta_t       = delta_t             # <<<<<<<<<<<<<<
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-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_delta_t); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 14; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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- * 	spa.longitude     = longitude             # <<<<<<<<<<<<<<
- * 	spa.latitude      = latitude
- * 	spa.elevation     = elevation
+  /* "spa_py.pyx":15
+ *     spa.delta_ut1 = 0
+ *     spa.delta_t = delta_t
+ *     spa.longitude = longitude             # <<<<<<<<<<<<<<
+ *     spa.latitude = latitude
+ *     spa.elevation = elevation
  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_longitude); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 15; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_longitude); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 15, __pyx_L1_error)
   __pyx_v_spa.longitude = __pyx_t_2;
 
-  /* "pvlib/spa_c_files/spa_py.pyx":16
- * 	spa.delta_t       = delta_t
- * 	spa.longitude     = longitude
- * 	spa.latitude      = latitude             # <<<<<<<<<<<<<<
- * 	spa.elevation     = elevation
- * 	spa.pressure      = pressure
+  /* "spa_py.pyx":16
+ *     spa.delta_t = delta_t
+ *     spa.longitude = longitude
+ *     spa.latitude = latitude             # <<<<<<<<<<<<<<
+ *     spa.elevation = elevation
+ *     spa.pressure = pressure
  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_latitude); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 16; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_latitude); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 16, __pyx_L1_error)
   __pyx_v_spa.latitude = __pyx_t_2;
 
-  /* "pvlib/spa_c_files/spa_py.pyx":17
- * 	spa.longitude     = longitude
- * 	spa.latitude      = latitude
- * 	spa.elevation     = elevation             # <<<<<<<<<<<<<<
- * 	spa.pressure      = pressure
- * 	spa.temperature   = temperature
+  /* "spa_py.pyx":17
+ *     spa.longitude = longitude
+ *     spa.latitude = latitude
+ *     spa.elevation = elevation             # <<<<<<<<<<<<<<
+ *     spa.pressure = pressure
+ *     spa.temperature = temperature
  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_elevation); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 17; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_elevation); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 17, __pyx_L1_error)
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-  /* "pvlib/spa_c_files/spa_py.pyx":18
- * 	spa.latitude      = latitude
- * 	spa.elevation     = elevation
- * 	spa.pressure      = pressure             # <<<<<<<<<<<<<<
- * 	spa.temperature   = temperature
- * 	spa.slope         = 30
+  /* "spa_py.pyx":18
+ *     spa.latitude = latitude
+ *     spa.elevation = elevation
+ *     spa.pressure = pressure             # <<<<<<<<<<<<<<
+ *     spa.temperature = temperature
+ *     spa.slope = 30
  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_pressure); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 18; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_pressure); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 18, __pyx_L1_error)
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-  /* "pvlib/spa_c_files/spa_py.pyx":19
- * 	spa.elevation     = elevation
- * 	spa.pressure      = pressure
- * 	spa.temperature   = temperature             # <<<<<<<<<<<<<<
- * 	spa.slope         = 30
- * 	spa.azm_rotation  = -10
+  /* "spa_py.pyx":19
+ *     spa.elevation = elevation
+ *     spa.pressure = pressure
+ *     spa.temperature = temperature             # <<<<<<<<<<<<<<
+ *     spa.slope = 30
+ *     spa.azm_rotation = -10
  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_temperature); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 19; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_temperature); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 19, __pyx_L1_error)
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-  /* "pvlib/spa_c_files/spa_py.pyx":20
- * 	spa.pressure      = pressure
- * 	spa.temperature   = temperature
- * 	spa.slope         = 30             # <<<<<<<<<<<<<<
- * 	spa.azm_rotation  = -10
- * 	spa.atmos_refract = 0.5667
+  /* "spa_py.pyx":20
+ *     spa.pressure = pressure
+ *     spa.temperature = temperature
+ *     spa.slope = 30             # <<<<<<<<<<<<<<
+ *     spa.azm_rotation = -10
+ *     spa.atmos_refract = 0.5667
  */
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-  /* "pvlib/spa_c_files/spa_py.pyx":21
- * 	spa.temperature   = temperature
- * 	spa.slope         = 30
- * 	spa.azm_rotation  = -10             # <<<<<<<<<<<<<<
- * 	spa.atmos_refract = 0.5667
+  /* "spa_py.pyx":21
+ *     spa.temperature = temperature
+ *     spa.slope = 30
+ *     spa.azm_rotation = -10             # <<<<<<<<<<<<<<
+ *     spa.atmos_refract = 0.5667
  * 
  */
   __pyx_v_spa.azm_rotation = -10.0;
 
-  /* "pvlib/spa_c_files/spa_py.pyx":22
- * 	spa.slope         = 30
- * 	spa.azm_rotation  = -10
- * 	spa.atmos_refract = 0.5667             # <<<<<<<<<<<<<<
+  /* "spa_py.pyx":22
+ *     spa.slope = 30
+ *     spa.azm_rotation = -10
+ *     spa.atmos_refract = 0.5667             # <<<<<<<<<<<<<<
  * 
- * 	err=cspa_py.spa_calculate(&spa)
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  */
   __pyx_v_spa.atmos_refract = 0.5667;
 
-  /* "pvlib/spa_c_files/spa_py.pyx":24
- * 	spa.atmos_refract = 0.5667
+  /* "spa_py.pyx":24
+ *     spa.atmos_refract = 0.5667
  * 
- * 	err=cspa_py.spa_calculate(&spa)             # <<<<<<<<<<<<<<
+ *     err = cspa_py.spa_calculate(&spa)             # <<<<<<<<<<<<<<
  * 
- * 	return spa
+ *     return spa
  */
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-  /* "pvlib/spa_c_files/spa_py.pyx":26
- * 	err=cspa_py.spa_calculate(&spa)
- * 
- * 	return spa             # <<<<<<<<<<<<<<
- * 
+  /* "spa_py.pyx":26
+ *     err = cspa_py.spa_calculate(&spa)
  * 
+ *     return spa             # <<<<<<<<<<<<<<
  */
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+  __pyx_t_3 = __pyx_convert__to_py_spa_data(__pyx_v_spa); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 26, __pyx_L1_error)
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-  /* "pvlib/spa_c_files/spa_py.pyx":3
+  /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year,month,day,hour,minute,second,timezone,latitude,longitude,elevation,pressure,temperature,delta_t):             # <<<<<<<<<<<<<<
- * 	cdef cspa_py.spa_data spa
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):             # <<<<<<<<<<<<<<
+ *     cdef cspa_py.spa_data spa
  * 
  */
 
   /* function exit code */
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-  __Pyx_AddTraceback("pvlib.spa_c_files.spa_py.spa_calc", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_AddTraceback("spa_py.spa_calc", __pyx_clineno, __pyx_lineno, __pyx_filename);
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@@ -996,17 +1463,31 @@ static PyMethodDef __pyx_methods[] = {
 };
 
 #if PY_MAJOR_VERSION >= 3
+#if CYTHON_PEP489_MULTI_PHASE_INIT
+static PyObject* __pyx_pymod_create(PyObject *spec, PyModuleDef *def); /*proto*/
+static int __pyx_pymod_exec_spa_py(PyObject* module); /*proto*/
+static PyModuleDef_Slot __pyx_moduledef_slots[] = {
+  {Py_mod_create, (void*)__pyx_pymod_create},
+  {Py_mod_exec, (void*)__pyx_pymod_exec_spa_py},
+  {0, NULL}
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 static struct PyModuleDef __pyx_moduledef = {
-  #if PY_VERSION_HEX < 0x03020000
-    { PyObject_HEAD_INIT(NULL) NULL, 0, NULL },
-  #else
     PyModuleDef_HEAD_INIT,
-  #endif
     "spa_py",
     0, /* m_doc */
+  #if CYTHON_PEP489_MULTI_PHASE_INIT
+    0, /* m_size */
+  #else
     -1, /* m_size */
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     __pyx_methods /* m_methods */,
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+    __pyx_moduledef_slots, /* m_slots */
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     NULL, /* m_reload */
+  #endif
     NULL, /* m_traverse */
     NULL, /* m_clear */
     NULL /* m_free */
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   {&__pyx_n_s_azm_rotation, __pyx_k_azm_rotation, sizeof(__pyx_k_azm_rotation), 0, 0, 1, 1},
+  {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
   {&__pyx_n_s_day, __pyx_k_day, sizeof(__pyx_k_day), 0, 0, 1, 1},
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   {&__pyx_n_s_err, __pyx_k_err, sizeof(__pyx_k_err), 0, 0, 1, 1},
   {&__pyx_n_s_function, __pyx_k_function, sizeof(__pyx_k_function), 0, 0, 1, 1},
-  {&__pyx_kp_s_home_tony_git_repos_pvlib_pytho, __pyx_k_home_tony_git_repos_pvlib_pytho, sizeof(__pyx_k_home_tony_git_repos_pvlib_pytho), 0, 0, 1, 0},
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   {&__pyx_n_s_incidence, __pyx_k_incidence, sizeof(__pyx_k_incidence), 0, 0, 1, 1},
   {&__pyx_n_s_latitude, __pyx_k_latitude, sizeof(__pyx_k_latitude), 0, 0, 1, 1},
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   {&__pyx_n_s_pressure, __pyx_k_pressure, sizeof(__pyx_k_pressure), 0, 0, 1, 1},
-  {&__pyx_n_s_pvlib_spa_c_files_spa_py, __pyx_k_pvlib_spa_c_files_spa_py, sizeof(__pyx_k_pvlib_spa_c_files_spa_py), 0, 0, 1, 1},
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   {&__pyx_n_s_spa_calc, __pyx_k_spa_calc, sizeof(__pyx_k_spa_calc), 0, 0, 1, 1},
+  {&__pyx_n_s_spa_py, __pyx_k_spa_py, sizeof(__pyx_k_spa_py), 0, 0, 1, 1},
+  {&__pyx_kp_s_spa_py_pyx, __pyx_k_spa_py_pyx, sizeof(__pyx_k_spa_py_pyx), 0, 0, 1, 0},
   {&__pyx_n_s_sunrise, __pyx_k_sunrise, sizeof(__pyx_k_sunrise), 0, 0, 1, 1},
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   {&__pyx_n_s_test, __pyx_k_test, sizeof(__pyx_k_test), 0, 0, 1, 1},
-  {&__pyx_n_s_timezone, __pyx_k_timezone, sizeof(__pyx_k_timezone), 0, 0, 1, 1},
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   {&__pyx_n_s_year, __pyx_k_year, sizeof(__pyx_k_year), 0, 0, 1, 1},
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-  /* "pvlib/spa_c_files/spa_py.pyx":3
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  * 
- * def spa_calc(year,month,day,hour,minute,second,timezone,latitude,longitude,elevation,pressure,temperature,delta_t):             # <<<<<<<<<<<<<<
- * 	cdef cspa_py.spa_data spa
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):             # <<<<<<<<<<<<<<
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  * 
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-  __pyx_tuple_ = PyTuple_Pack(15, __pyx_n_s_year, __pyx_n_s_month, __pyx_n_s_day, __pyx_n_s_hour, __pyx_n_s_minute, __pyx_n_s_second, __pyx_n_s_timezone, __pyx_n_s_latitude, __pyx_n_s_longitude, __pyx_n_s_elevation, __pyx_n_s_pressure, __pyx_n_s_temperature, __pyx_n_s_delta_t, __pyx_n_s_spa, __pyx_n_s_err); if (unlikely(!__pyx_tuple_)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 3; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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 static int __Pyx_InitGlobals(void) {
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             end = mid;
         } else if (code_line > entries[mid].code_line) {
@@ -1447,6 +2166,7 @@ static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
     Py_INCREF(code_object);
 }
 
+/* AddTraceback */
 #include "compile.h"
 #include "frameobject.h"
 #include "traceback.h"
@@ -1506,50 +2226,178 @@ static void __Pyx_AddTraceback(const char *funcname, int c_line,
                                int py_line, const char *filename) {
     PyCodeObject *py_code = 0;
     PyFrameObject *py_frame = 0;
-    py_code = __pyx_find_code_object(c_line ? c_line : py_line);
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    if (c_line) {
+        c_line = __Pyx_CLineForTraceback(tstate, c_line);
+    }
+    py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
     if (!py_code) {
         py_code = __Pyx_CreateCodeObjectForTraceback(
             funcname, c_line, py_line, filename);
         if (!py_code) goto bad;
-        __pyx_insert_code_object(c_line ? c_line : py_line, py_code);
+        __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
     }
     py_frame = PyFrame_New(
-        PyThreadState_GET(), /*PyThreadState *tstate,*/
-        py_code,             /*PyCodeObject *code,*/
-        __pyx_d,      /*PyObject *globals,*/
-        0                    /*PyObject *locals*/
+        tstate,            /*PyThreadState *tstate,*/
+        py_code,           /*PyCodeObject *code,*/
+        __pyx_d,    /*PyObject *globals,*/
+        0                  /*PyObject *locals*/
     );
     if (!py_frame) goto bad;
-    py_frame->f_lineno = py_line;
+    __Pyx_PyFrame_SetLineNumber(py_frame, py_line);
     PyTraceBack_Here(py_frame);
 bad:
     Py_XDECREF(py_code);
     Py_XDECREF(py_frame);
 }
 
-#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)       \
-    {                                                                     \
-        func_type value = func_value;                                     \
-        if (sizeof(target_type) < sizeof(func_type)) {                    \
-            if (unlikely(value != (func_type) (target_type) value)) {     \
-                func_type zero = 0;                                       \
-                if (is_unsigned && unlikely(value < zero))                \
-                    goto raise_neg_overflow;                              \
-                else                                                      \
-                    goto raise_overflow;                                  \
-            }                                                             \
-        }                                                                 \
-        return (target_type) value;                                       \
+/* CIntFromPyVerify */
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
+#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
+#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
+    {\
+        func_type value = func_value;\
+        if (sizeof(target_type) < sizeof(func_type)) {\
+            if (unlikely(value != (func_type) (target_type) value)) {\
+                func_type zero = 0;\
+                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
+                    return (target_type) -1;\
+                if (is_unsigned && unlikely(value < zero))\
+                    goto raise_neg_overflow;\
+                else\
+                    goto raise_overflow;\
+            }\
+        }\
+        return (target_type) value;\
     }
 
-#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
- #if CYTHON_USE_PYLONG_INTERNALS
-  #include "longintrepr.h"
- #endif
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = (int) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
 #endif
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
 
+static PyObject* __pyx_convert__to_py_spa_data(spa_data s) {
+  PyObject* res;
+  PyObject* member;
+  res = __Pyx_PyDict_NewPresized(27); if (unlikely(!res)) return NULL;
+  member = __Pyx_PyInt_From_int(s.year); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_year, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.month); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_month, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.day); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_day, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.hour); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_hour, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.minute); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_minute, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.second); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_second, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.delta_ut1); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_delta_ut1, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.delta_t); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_delta_t, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.time_zone); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_time_zone, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.longitude); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_longitude, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.latitude); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_latitude, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.elevation); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_elevation, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.pressure); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_pressure, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.temperature); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_temperature, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.slope); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_slope, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.azm_rotation); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azm_rotation, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.atmos_refract); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_atmos_refract, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.function); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_function, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.e0); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_e0, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.e); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_e, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.zenith); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_zenith, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.azimuth_astro); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azimuth_astro, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.azimuth); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azimuth, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.incidence); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_incidence, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.suntransit); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_suntransit, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.sunrise); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_sunrise, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.sunset); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_sunset, member) < 0)) goto bad;
+  Py_DECREF(member);
+  return res;
+  bad:
+  Py_XDECREF(member);
+  Py_DECREF(res);
+  return NULL;
+}
+/* CIntFromPy */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
-    const int neg_one = (int) -1, const_zero = 0;
+    const int neg_one = (int) -1, const_zero = (int) 0;
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
@@ -1566,36 +2414,129 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
 #endif
     if (likely(PyLong_Check(x))) {
         if (is_unsigned) {
-#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
- #if CYTHON_USE_PYLONG_INTERNALS
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
             switch (Py_SIZE(x)) {
-                case  0: return 0;
-                case  1: __PYX_VERIFY_RETURN_INT(int, digit, ((PyLongObject*)x)->ob_digit[0]);
+                case  0: return (int) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) {
+                            return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) {
+                            return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) {
+                            return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
             }
- #endif
 #endif
+#if CYTHON_COMPILING_IN_CPYTHON
             if (unlikely(Py_SIZE(x) < 0)) {
                 goto raise_neg_overflow;
             }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (int) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
             if (sizeof(int) <= sizeof(unsigned long)) {
-                __PYX_VERIFY_RETURN_INT(int, unsigned long, PyLong_AsUnsignedLong(x))
-            } else if (sizeof(int) <= sizeof(unsigned long long)) {
-                __PYX_VERIFY_RETURN_INT(int, unsigned long long, PyLong_AsUnsignedLongLong(x))
+                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
             }
         } else {
-#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
- #if CYTHON_USE_PYLONG_INTERNALS
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
             switch (Py_SIZE(x)) {
-                case  0: return 0;
-                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +(((PyLongObject*)x)->ob_digit[0]));
-                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+                case  0: return (int) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                            return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                            return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
+                            return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
             }
- #endif
 #endif
             if (sizeof(int) <= sizeof(long)) {
-                __PYX_VERIFY_RETURN_INT(int, long, PyLong_AsLong(x))
-            } else if (sizeof(int) <= sizeof(long long)) {
-                __PYX_VERIFY_RETURN_INT(int, long long, PyLong_AsLongLong(x))
+                __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
             }
         }
         {
@@ -1604,7 +2545,7 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
                             "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
 #else
             int val;
-            PyObject *v = __Pyx_PyNumber_Int(x);
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
  #if PY_MAJOR_VERSION < 3
             if (likely(v) && !PyLong_Check(v)) {
                 PyObject *tmp = v;
@@ -1627,7 +2568,7 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
         }
     } else {
         int val;
-        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
         if (!tmp) return (int) -1;
         val = __Pyx_PyInt_As_int(tmp);
         Py_DECREF(tmp);
@@ -1643,139 +2584,27 @@ static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
     return (int) -1;
 }
 
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
-    const int neg_one = (int) -1, const_zero = 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(int) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(int) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-        } else if (sizeof(int) <= sizeof(unsigned long long)) {
-            return PyLong_FromUnsignedLongLong((unsigned long long) value);
-        }
-    } else {
-        if (sizeof(int) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(int) <= sizeof(long long)) {
-            return PyLong_FromLongLong((long long) value);
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(int),
-                                     little, !is_unsigned);
-    }
-}
-
-static PyObject* __pyx_convert__to_py_spa_data(spa_data s) {
-  PyObject* res;
-  PyObject* member;
-  res = PyDict_New(); if (res == NULL) return NULL;
-  member = __Pyx_PyInt_From_int(s.year); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_year, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.month); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_month, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.day); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_day, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.hour); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_hour, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.minute); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_minute, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.second); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_second, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.delta_ut1); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_delta_ut1, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.delta_t); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_delta_t, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.timezone); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_timezone, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.longitude); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_longitude, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.latitude); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_latitude, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.elevation); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_elevation, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.pressure); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_pressure, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.temperature); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_temperature, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.slope); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_slope, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azm_rotation); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_azm_rotation, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.atmos_refract); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_atmos_refract, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.function); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_function, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.e0); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_e0, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.e); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_e, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.zenith); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_zenith, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azimuth_astro); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_azimuth_astro, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azimuth); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_azimuth, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.incidence); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_incidence, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.suntransit); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_suntransit, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.sunrise); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_sunrise, member) < 0) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.sunset); if (member == NULL) goto bad;
-  if (PyDict_SetItem(res, __pyx_n_s_sunset, member) < 0) goto bad;
-  Py_DECREF(member);
-  return res;
-  bad:
-  Py_XDECREF(member);
-  Py_DECREF(res);
-  return NULL;
-}
+/* CIntToPy */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
-    const long neg_one = (long) -1, const_zero = 0;
+    const long neg_one = (long) -1, const_zero = (long) 0;
     const int is_unsigned = neg_one > const_zero;
     if (is_unsigned) {
         if (sizeof(long) < sizeof(long)) {
             return PyInt_FromLong((long) value);
         } else if (sizeof(long) <= sizeof(unsigned long)) {
             return PyLong_FromUnsignedLong((unsigned long) value);
-        } else if (sizeof(long) <= sizeof(unsigned long long)) {
-            return PyLong_FromUnsignedLongLong((unsigned long long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
         }
     } else {
         if (sizeof(long) <= sizeof(long)) {
             return PyInt_FromLong((long) value);
-        } else if (sizeof(long) <= sizeof(long long)) {
-            return PyLong_FromLongLong((long long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
         }
     }
     {
@@ -1786,8 +2615,9 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
     }
 }
 
+/* CIntFromPy */
 static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
-    const long neg_one = (long) -1, const_zero = 0;
+    const long neg_one = (long) -1, const_zero = (long) 0;
     const int is_unsigned = neg_one > const_zero;
 #if PY_MAJOR_VERSION < 3
     if (likely(PyInt_Check(x))) {
@@ -1804,36 +2634,129 @@ static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
 #endif
     if (likely(PyLong_Check(x))) {
         if (is_unsigned) {
-#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
- #if CYTHON_USE_PYLONG_INTERNALS
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
             switch (Py_SIZE(x)) {
-                case  0: return 0;
-                case  1: __PYX_VERIFY_RETURN_INT(long, digit, ((PyLongObject*)x)->ob_digit[0]);
+                case  0: return (long) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) {
+                            return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) {
+                            return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) {
+                            return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
             }
- #endif
 #endif
+#if CYTHON_COMPILING_IN_CPYTHON
             if (unlikely(Py_SIZE(x) < 0)) {
                 goto raise_neg_overflow;
             }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (long) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
             if (sizeof(long) <= sizeof(unsigned long)) {
-                __PYX_VERIFY_RETURN_INT(long, unsigned long, PyLong_AsUnsignedLong(x))
-            } else if (sizeof(long) <= sizeof(unsigned long long)) {
-                __PYX_VERIFY_RETURN_INT(long, unsigned long long, PyLong_AsUnsignedLongLong(x))
+                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
             }
         } else {
-#if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
- #if CYTHON_USE_PYLONG_INTERNALS
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
             switch (Py_SIZE(x)) {
-                case  0: return 0;
-                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +(((PyLongObject*)x)->ob_digit[0]));
-                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, -(sdigit) ((PyLongObject*)x)->ob_digit[0]);
+                case  0: return (long) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                            return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                            return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
+                            return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
             }
- #endif
 #endif
             if (sizeof(long) <= sizeof(long)) {
-                __PYX_VERIFY_RETURN_INT(long, long, PyLong_AsLong(x))
-            } else if (sizeof(long) <= sizeof(long long)) {
-                __PYX_VERIFY_RETURN_INT(long, long long, PyLong_AsLongLong(x))
+                __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
             }
         }
         {
@@ -1842,7 +2765,7 @@ static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
                             "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
 #else
             long val;
-            PyObject *v = __Pyx_PyNumber_Int(x);
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
  #if PY_MAJOR_VERSION < 3
             if (likely(v) && !PyLong_Check(v)) {
                 PyObject *tmp = v;
@@ -1865,7 +2788,7 @@ static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
         }
     } else {
         long val;
-        PyObject *tmp = __Pyx_PyNumber_Int(x);
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
         if (!tmp) return (long) -1;
         val = __Pyx_PyInt_As_long(tmp);
         Py_DECREF(tmp);
@@ -1881,6 +2804,107 @@ static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
     return (long) -1;
 }
 
+/* FastTypeChecks */
+#if CYTHON_COMPILING_IN_CPYTHON
+static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
+    while (a) {
+        a = a->tp_base;
+        if (a == b)
+            return 1;
+    }
+    return b == &PyBaseObject_Type;
+}
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
+    PyObject *mro;
+    if (a == b) return 1;
+    mro = a->tp_mro;
+    if (likely(mro)) {
+        Py_ssize_t i, n;
+        n = PyTuple_GET_SIZE(mro);
+        for (i = 0; i < n; i++) {
+            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
+                return 1;
+        }
+        return 0;
+    }
+    return __Pyx_InBases(a, b);
+}
+#if PY_MAJOR_VERSION == 2
+static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
+    PyObject *exception, *value, *tb;
+    int res;
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrFetch(&exception, &value, &tb);
+    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
+    if (unlikely(res == -1)) {
+        PyErr_WriteUnraisable(err);
+        res = 0;
+    }
+    if (!res) {
+        res = PyObject_IsSubclass(err, exc_type2);
+        if (unlikely(res == -1)) {
+            PyErr_WriteUnraisable(err);
+            res = 0;
+        }
+    }
+    __Pyx_ErrRestore(exception, value, tb);
+    return res;
+}
+#else
+static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
+    int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0;
+    if (!res) {
+        res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
+    }
+    return res;
+}
+#endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
+    if (likely(err == exc_type)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
+    }
+    return PyErr_GivenExceptionMatches(err, exc_type);
+}
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
+    if (likely(err == exc_type1 || err == exc_type2)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
+    }
+    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
+}
+#endif
+
+/* CheckBinaryVersion */
 static int __Pyx_check_binary_version(void) {
     char ctversion[4], rtversion[4];
     PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
@@ -1896,6 +2920,7 @@ static int __Pyx_check_binary_version(void) {
     return 0;
 }
 
+/* InitStrings */
 static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
     while (t->p) {
         #if PY_MAJOR_VERSION < 3
@@ -1921,6 +2946,8 @@ static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
         #endif
         if (!*t->p)
             return -1;
+        if (PyObject_Hash(*t->p) == -1)
+            return -1;
         ++t;
     }
     return 0;
@@ -1929,53 +2956,60 @@ static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
 static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
     return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
 }
-static CYTHON_INLINE char* __Pyx_PyObject_AsString(PyObject* o) {
+static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
     Py_ssize_t ignore;
     return __Pyx_PyObject_AsStringAndSize(o, &ignore);
 }
-static CYTHON_INLINE char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
 #if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
-    if (
-#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-            __Pyx_sys_getdefaultencoding_not_ascii &&
-#endif
-            PyUnicode_Check(o)) {
-#if PY_VERSION_HEX < 0x03030000
-        char* defenc_c;
-        PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
-        if (!defenc) return NULL;
-        defenc_c = PyBytes_AS_STRING(defenc);
+#if !CYTHON_PEP393_ENABLED
+static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+    char* defenc_c;
+    PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+    if (!defenc) return NULL;
+    defenc_c = PyBytes_AS_STRING(defenc);
 #if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-        {
-            char* end = defenc_c + PyBytes_GET_SIZE(defenc);
-            char* c;
-            for (c = defenc_c; c < end; c++) {
-                if ((unsigned char) (*c) >= 128) {
-                    PyUnicode_AsASCIIString(o);
-                    return NULL;
-                }
+    {
+        char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+        char* c;
+        for (c = defenc_c; c < end; c++) {
+            if ((unsigned char) (*c) >= 128) {
+                PyUnicode_AsASCIIString(o);
+                return NULL;
             }
         }
+    }
 #endif
-        *length = PyBytes_GET_SIZE(defenc);
-        return defenc_c;
+    *length = PyBytes_GET_SIZE(defenc);
+    return defenc_c;
+}
 #else
-        if (__Pyx_PyUnicode_READY(o) == -1) return NULL;
+static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+    if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL;
 #if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-        if (PyUnicode_IS_ASCII(o)) {
-            *length = PyUnicode_GET_LENGTH(o);
-            return PyUnicode_AsUTF8(o);
-        } else {
-            PyUnicode_AsASCIIString(o);
-            return NULL;
-        }
+    if (likely(PyUnicode_IS_ASCII(o))) {
+        *length = PyUnicode_GET_LENGTH(o);
+        return PyUnicode_AsUTF8(o);
+    } else {
+        PyUnicode_AsASCIIString(o);
+        return NULL;
+    }
 #else
-        return PyUnicode_AsUTF8AndSize(o, length);
+    return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+}
 #endif
 #endif
+static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+        return __Pyx_PyUnicode_AsStringAndSize(o, length);
     } else
 #endif
-#if !CYTHON_COMPILING_IN_PYPY
+#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
     if (PyByteArray_Check(o)) {
         *length = PyByteArray_GET_SIZE(o);
         return PyByteArray_AS_STRING(o);
@@ -1996,43 +3030,67 @@ static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
    if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
    else return PyObject_IsTrue(x);
 }
-static CYTHON_INLINE PyObject* __Pyx_PyNumber_Int(PyObject* x) {
+static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
+#if PY_MAJOR_VERSION >= 3
+    if (PyLong_Check(result)) {
+        if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
+                "__int__ returned non-int (type %.200s).  "
+                "The ability to return an instance of a strict subclass of int "
+                "is deprecated, and may be removed in a future version of Python.",
+                Py_TYPE(result)->tp_name)) {
+            Py_DECREF(result);
+            return NULL;
+        }
+        return result;
+    }
+#endif
+    PyErr_Format(PyExc_TypeError,
+                 "__%.4s__ returned non-%.4s (type %.200s)",
+                 type_name, type_name, Py_TYPE(result)->tp_name);
+    Py_DECREF(result);
+    return NULL;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
+#if CYTHON_USE_TYPE_SLOTS
   PyNumberMethods *m;
+#endif
   const char *name = NULL;
   PyObject *res = NULL;
 #if PY_MAJOR_VERSION < 3
-  if (PyInt_Check(x) || PyLong_Check(x))
+  if (likely(PyInt_Check(x) || PyLong_Check(x)))
 #else
-  if (PyLong_Check(x))
+  if (likely(PyLong_Check(x)))
 #endif
-    return Py_INCREF(x), x;
+    return __Pyx_NewRef(x);
+#if CYTHON_USE_TYPE_SLOTS
   m = Py_TYPE(x)->tp_as_number;
-#if PY_MAJOR_VERSION < 3
+  #if PY_MAJOR_VERSION < 3
   if (m && m->nb_int) {
     name = "int";
-    res = PyNumber_Int(x);
+    res = m->nb_int(x);
   }
   else if (m && m->nb_long) {
     name = "long";
-    res = PyNumber_Long(x);
+    res = m->nb_long(x);
   }
-#else
-  if (m && m->nb_int) {
+  #else
+  if (likely(m && m->nb_int)) {
     name = "int";
-    res = PyNumber_Long(x);
+    res = m->nb_int(x);
+  }
+  #endif
+#else
+  if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) {
+    res = PyNumber_Int(x);
   }
 #endif
-  if (res) {
+  if (likely(res)) {
 #if PY_MAJOR_VERSION < 3
-    if (!PyInt_Check(res) && !PyLong_Check(res)) {
+    if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) {
 #else
-    if (!PyLong_Check(res)) {
+    if (unlikely(!PyLong_CheckExact(res))) {
 #endif
-      PyErr_Format(PyExc_TypeError,
-                   "__%.4s__ returned non-%.4s (type %.200s)",
-                   name, name, Py_TYPE(res)->tp_name);
-      Py_DECREF(res);
-      return NULL;
+        return __Pyx_PyNumber_IntOrLongWrongResultType(res, name);
     }
   }
   else if (!PyErr_Occurred()) {
@@ -2045,18 +3103,55 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_ssize_t ival;
   PyObject *x;
 #if PY_MAJOR_VERSION < 3
-  if (likely(PyInt_CheckExact(b)))
-      return PyInt_AS_LONG(b);
+  if (likely(PyInt_CheckExact(b))) {
+    if (sizeof(Py_ssize_t) >= sizeof(long))
+        return PyInt_AS_LONG(b);
+    else
+        return PyInt_AsSsize_t(x);
+  }
 #endif
   if (likely(PyLong_CheckExact(b))) {
-    #if CYTHON_COMPILING_IN_CPYTHON && PY_MAJOR_VERSION >= 3
-     #if CYTHON_USE_PYLONG_INTERNALS
-       switch (Py_SIZE(b)) {
-       case -1: return -(sdigit)((PyLongObject*)b)->ob_digit[0];
-       case  0: return 0;
-       case  1: return ((PyLongObject*)b)->ob_digit[0];
-       }
-     #endif
+    #if CYTHON_USE_PYLONG_INTERNALS
+    const digit* digits = ((PyLongObject*)b)->ob_digit;
+    const Py_ssize_t size = Py_SIZE(b);
+    if (likely(__Pyx_sst_abs(size) <= 1)) {
+        ival = likely(size) ? digits[0] : 0;
+        if (size == -1) ival = -ival;
+        return ival;
+    } else {
+      switch (size) {
+         case 2:
+           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -2:
+           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case 3:
+           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -3:
+           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case 4:
+           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -4:
+           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+      }
+    }
     #endif
     return PyLong_AsSsize_t(b);
   }
@@ -2066,6 +3161,9 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_DECREF(x);
   return ival;
 }
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
     return PyInt_FromSize_t(ival);
 }
diff --git a/pvlib/spa_c_files/spa_py.pyx b/pvlib/spa_c_files/spa_py.pyx
index 2359045a63..fb8ed89b54 100644
--- a/pvlib/spa_c_files/spa_py.pyx
+++ b/pvlib/spa_c_files/spa_py.pyx
@@ -1,45 +1,26 @@
 cimport cspa_py
 
-def spa_calc(year,month,day,hour,minute,second,timezone,latitude,longitude,elevation,pressure,temperature,delta_t):
-	cdef cspa_py.spa_data spa
+def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):
+    cdef cspa_py.spa_data spa
 
-	spa.year          = year
-	spa.month         = month
-	spa.day           = day
-	spa.hour          = hour
-	spa.minute        = minute
-	spa.second        = second
-	spa.timezone      = timezone
-	spa.delta_ut1     = 0
-	spa.delta_t       = delta_t
-	spa.longitude     = longitude
-	spa.latitude      = latitude
-	spa.elevation     = elevation
-	spa.pressure      = pressure
-	spa.temperature   = temperature
-	spa.slope         = 30
-	spa.azm_rotation  = -10
-	spa.atmos_refract = 0.5667
+    spa.year = year
+    spa.month = month
+    spa.day = day
+    spa.hour = hour
+    spa.minute = minute
+    spa.second = second
+    spa.time_zone = time_zone
+    spa.delta_ut1 = 0
+    spa.delta_t = delta_t
+    spa.longitude = longitude
+    spa.latitude = latitude
+    spa.elevation = elevation
+    spa.pressure = pressure
+    spa.temperature = temperature
+    spa.slope = 30
+    spa.azm_rotation = -10
+    spa.atmos_refract = 0.5667
 
-	err=cspa_py.spa_calculate(&spa)
+    err = cspa_py.spa_calculate(&spa)
 
-	return spa
-	
-
-#spa.year          = 2004
-#spa.month         = 10
-#spa.day           = 17
-#spa.hour          = 12
-#spa.minute        = 30
-#spa.second        = 30
-#spa.timezone      = -7.0
-#spa.delta_ut1     = 0
-#spa.delta_t       = 67
-#spa.longitude     = -105.1786
-#spa.latitude      = 39.742476
-#spa.elevation     = 1830.14
-#spa.pressure      = 820
-#spa.temperature   = 11
-#spa.slope         = 30
-#spa.azm_rotation  = -10
-#spa.atmos_refract = 0.5667
\ No newline at end of file
+    return spa
\ No newline at end of file

From cf730ca9db33e4859ecb78db1be38b550191e588 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 14:35:26 -0700
Subject: [PATCH 02/16] ENH: add no Python-2.7 to spa_c_files README

* add enumeration for function type, it was reading garbage, so you
never new exacton which calculations SPA was doing, and you would get
garbage values for incidence, sunrise, transit, and sunset times
* set function SPA_ALL, and pass extra args in as optional keyword args
for slope, delta_ut1, azm_rotation, and atmos_refract
* add example file that user can run to test build
---
 pvlib/spa_c_files/README.md         |   4 +-
 pvlib/spa_c_files/cspa_py.pxd       |   5 +-
 pvlib/spa_c_files/spa_py.c          | 284 ++++++++++++++++++----------
 pvlib/spa_c_files/spa_py.pyx        |  16 +-
 pvlib/spa_c_files/spa_py_example.py |  44 +++++
 5 files changed, 242 insertions(+), 111 deletions(-)
 create mode 100644 pvlib/spa_c_files/spa_py_example.py

diff --git a/pvlib/spa_c_files/README.md b/pvlib/spa_c_files/README.md
index 6b15bd35e2..4d3ecf2348 100644
--- a/pvlib/spa_c_files/README.md
+++ b/pvlib/spa_c_files/README.md
@@ -35,4 +35,6 @@ folder:
     $ python setup.py build_ext --inplace
 
 Executing the build command will also download the ``spa.c`` and ``spa.h``
-files from NREL and copy them into the ``pvlib/spa_c_files`` directory.
\ No newline at end of file
+files from NREL and copy them into the ``pvlib/spa_c_files`` directory.
+
+This build process may not be not compatible with Python-2.7.
\ No newline at end of file
diff --git a/pvlib/spa_c_files/cspa_py.pxd b/pvlib/spa_c_files/cspa_py.pxd
index d7d531f6ae..0a6c56de14 100644
--- a/pvlib/spa_c_files/cspa_py.pxd
+++ b/pvlib/spa_c_files/cspa_py.pxd
@@ -1,4 +1,7 @@
 cdef extern from "spa.h":
+    ctypedef enum:
+        SPA_ZA, SPA_ZA_INC, SPA_ZA_RTS, SPA_ALL
+
     ctypedef struct spa_data:
         int year
         int month
@@ -37,4 +40,4 @@ cdef extern from "spa.h":
         double sunrise
         double sunset
 
-    int spa_calculate(spa_data *spa)
\ No newline at end of file
+    int spa_calculate(spa_data *spa)
diff --git a/pvlib/spa_c_files/spa_py.c b/pvlib/spa_c_files/spa_py.c
index b43dbc70ec..61291b064f 100644
--- a/pvlib/spa_c_files/spa_py.c
+++ b/pvlib/spa_c_files/spa_py.c
@@ -1007,11 +1007,13 @@ static const char __pyx_k_time_zone[] = "time_zone";
 static const char __pyx_k_spa_py_pyx[] = "spa_py.pyx";
 static const char __pyx_k_suntransit[] = "suntransit";
 static const char __pyx_k_temperature[] = "temperature";
+static const char __pyx_k_axm_rotation[] = "axm_rotation";
 static const char __pyx_k_azm_rotation[] = "azm_rotation";
 static const char __pyx_k_atmos_refract[] = "atmos_refract";
 static const char __pyx_k_azimuth_astro[] = "azimuth_astro";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static PyObject *__pyx_n_s_atmos_refract;
+static PyObject *__pyx_n_s_axm_rotation;
 static PyObject *__pyx_n_s_azimuth;
 static PyObject *__pyx_n_s_azimuth_astro;
 static PyObject *__pyx_n_s_azm_rotation;
@@ -1046,7 +1048,11 @@ static PyObject *__pyx_n_s_test;
 static PyObject *__pyx_n_s_time_zone;
 static PyObject *__pyx_n_s_year;
 static PyObject *__pyx_n_s_zenith;
-static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t); /* proto */
+static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_axm_rotation, PyObject *__pyx_v_atmos_refract); /* proto */
+static PyObject *__pyx_float_30_0;
+static PyObject *__pyx_float_0_5667;
+static PyObject *__pyx_int_0;
+static PyObject *__pyx_int_neg_10;
 static PyObject *__pyx_tuple_;
 static PyObject *__pyx_codeobj__2;
 /* Late includes */
@@ -1054,9 +1060,9 @@ static PyObject *__pyx_codeobj__2;
 /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):             # <<<<<<<<<<<<<<
- *     cdef cspa_py.spa_data spa
- * 
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ *         longitude, elevation, pressure, temperature, delta_t,
+ *         delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
  */
 
 /* Python wrapper */
@@ -1076,16 +1082,32 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
   PyObject *__pyx_v_pressure = 0;
   PyObject *__pyx_v_temperature = 0;
   PyObject *__pyx_v_delta_t = 0;
+  PyObject *__pyx_v_delta_ut1 = 0;
+  PyObject *__pyx_v_slope = 0;
+  PyObject *__pyx_v_axm_rotation = 0;
+  PyObject *__pyx_v_atmos_refract = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("spa_calc (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_time_zone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,0};
-    PyObject* values[13] = {0,0,0,0,0,0,0,0,0,0,0,0,0};
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_time_zone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,&__pyx_n_s_delta_ut1,&__pyx_n_s_slope,&__pyx_n_s_axm_rotation,&__pyx_n_s_atmos_refract,0};
+    PyObject* values[17] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+    values[13] = ((PyObject *)__pyx_int_0);
+    values[14] = ((PyObject *)__pyx_float_30_0);
+    values[15] = ((PyObject *)__pyx_int_neg_10);
+    values[16] = ((PyObject *)__pyx_float_0_5667);
     if (unlikely(__pyx_kwds)) {
       Py_ssize_t kw_args;
       const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
       switch (pos_args) {
+        case 17: values[16] = PyTuple_GET_ITEM(__pyx_args, 16);
+        CYTHON_FALLTHROUGH;
+        case 16: values[15] = PyTuple_GET_ITEM(__pyx_args, 15);
+        CYTHON_FALLTHROUGH;
+        case 15: values[14] = PyTuple_GET_ITEM(__pyx_args, 14);
+        CYTHON_FALLTHROUGH;
+        case 14: values[13] = PyTuple_GET_ITEM(__pyx_args, 13);
+        CYTHON_FALLTHROUGH;
         case 13: values[12] = PyTuple_GET_ITEM(__pyx_args, 12);
         CYTHON_FALLTHROUGH;
         case 12: values[11] = PyTuple_GET_ITEM(__pyx_args, 11);
@@ -1124,94 +1146,128 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
         case  1:
         if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_month)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 1); __PYX_ERR(0, 3, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 1); __PYX_ERR(0, 3, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  2:
         if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_day)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 2); __PYX_ERR(0, 3, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 2); __PYX_ERR(0, 3, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  3:
         if (likely((values[3] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_hour)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 3); __PYX_ERR(0, 3, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 3); __PYX_ERR(0, 3, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  4:
         if (likely((values[4] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_minute)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 4); __PYX_ERR(0, 3, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 4); __PYX_ERR(0, 3, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  5:
         if (likely((values[5] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_second)) != 0)) kw_args--;
         else {
-          __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, 5); __PYX_ERR(0, 3, __pyx_L3_error)
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 5); __PYX_ERR(0, 3, __pyx_L3_error)
         }
         CYTHON_FALLTHROUGH;
         case  6:
         if (likely((values[6] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_time_zone)) != 0)) kw_args--;
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+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 12); __PYX_ERR(0, 3, __pyx_L3_error)
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+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_delta_ut1);
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+        if (kw_args > 0) {
+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_slope);
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+        CYTHON_FALLTHROUGH;
+        case 15:
+        if (kw_args > 0) {
+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_axm_rotation);
+          if (value) { values[15] = value; kw_args--; }
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+        CYTHON_FALLTHROUGH;
+        case 16:
+        if (kw_args > 0) {
+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_atmos_refract);
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-      values[12] = PyTuple_GET_ITEM(__pyx_args, 12);
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+        CYTHON_FALLTHROUGH;
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+        values[9] = PyTuple_GET_ITEM(__pyx_args, 9);
+        values[8] = PyTuple_GET_ITEM(__pyx_args, 8);
+        values[7] = PyTuple_GET_ITEM(__pyx_args, 7);
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+        values[5] = PyTuple_GET_ITEM(__pyx_args, 5);
+        values[4] = PyTuple_GET_ITEM(__pyx_args, 4);
+        values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
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+    __pyx_v_delta_ut1 = values[13];
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-  __Pyx_RaiseArgtupleInvalid("spa_calc", 1, 13, 13, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 3, __pyx_L3_error)
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@@ -1252,174 +1312,187 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
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-  /* "spa_py.pyx":9
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-  /* "spa_py.pyx":10
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  *     spa.hour = hour
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+  __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_minute); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 13, __pyx_L1_error)
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-  /* "spa_py.pyx":11
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  *     spa.minute = minute
  *     spa.second = second             # <<<<<<<<<<<<<<
  *     spa.time_zone = time_zone
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  *     spa.second = second
  *     spa.time_zone = time_zone             # <<<<<<<<<<<<<<
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  *     spa.time_zone = time_zone
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- *     spa.delta_ut1 = 0
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-  /* "spa_py.pyx":15
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+  /* "spa_py.pyx":18
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  *     spa.elevation = elevation
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-  /* "spa_py.pyx":16
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  *     spa.longitude = longitude
  *     spa.latitude = latitude             # <<<<<<<<<<<<<<
  *     spa.elevation = elevation
  *     spa.pressure = pressure
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+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_latitude); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 19, __pyx_L1_error)
   __pyx_v_spa.latitude = __pyx_t_2;
 
-  /* "spa_py.pyx":17
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  *     spa.latitude = latitude
  *     spa.elevation = elevation             # <<<<<<<<<<<<<<
  *     spa.pressure = pressure
  *     spa.temperature = temperature
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   __pyx_v_spa.elevation = __pyx_t_2;
 
-  /* "spa_py.pyx":18
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  *     spa.latitude = latitude
  *     spa.elevation = elevation
  *     spa.pressure = pressure             # <<<<<<<<<<<<<<
  *     spa.temperature = temperature
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+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_pressure); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 21, __pyx_L1_error)
   __pyx_v_spa.pressure = __pyx_t_2;
 
-  /* "spa_py.pyx":19
+  /* "spa_py.pyx":22
  *     spa.elevation = elevation
  *     spa.pressure = pressure
  *     spa.temperature = temperature             # <<<<<<<<<<<<<<
- *     spa.slope = 30
- *     spa.azm_rotation = -10
+ *     spa.slope = slope
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-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_temperature); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 19, __pyx_L1_error)
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   __pyx_v_spa.temperature = __pyx_t_2;
 
-  /* "spa_py.pyx":20
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  *     spa.pressure = pressure
  *     spa.temperature = temperature
- *     spa.slope = 30             # <<<<<<<<<<<<<<
- *     spa.azm_rotation = -10
- *     spa.atmos_refract = 0.5667
+ *     spa.slope = slope             # <<<<<<<<<<<<<<
+ *     spa.azm_rotation = axm_rotation
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- *     spa.slope = 30
- *     spa.azm_rotation = -10             # <<<<<<<<<<<<<<
- *     spa.atmos_refract = 0.5667
+ *     spa.slope = slope
+ *     spa.azm_rotation = axm_rotation             # <<<<<<<<<<<<<<
+ *     spa.atmos_refract = atmos_refract
+ *     spa.function = cspa_py.SPA_ALL
+ */
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_axm_rotation); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 24, __pyx_L1_error)
+  __pyx_v_spa.azm_rotation = __pyx_t_2;
+
+  /* "spa_py.pyx":25
+ *     spa.slope = slope
+ *     spa.azm_rotation = axm_rotation
+ *     spa.atmos_refract = atmos_refract             # <<<<<<<<<<<<<<
+ *     spa.function = cspa_py.SPA_ALL
  * 
  */
-  __pyx_v_spa.azm_rotation = -10.0;
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_atmos_refract); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 25, __pyx_L1_error)
+  __pyx_v_spa.atmos_refract = __pyx_t_2;
 
-  /* "spa_py.pyx":22
- *     spa.slope = 30
- *     spa.azm_rotation = -10
- *     spa.atmos_refract = 0.5667             # <<<<<<<<<<<<<<
+  /* "spa_py.pyx":26
+ *     spa.azm_rotation = axm_rotation
+ *     spa.atmos_refract = atmos_refract
+ *     spa.function = cspa_py.SPA_ALL             # <<<<<<<<<<<<<<
  * 
  *     err = cspa_py.spa_calculate(&spa)
  */
-  __pyx_v_spa.atmos_refract = 0.5667;
+  __pyx_v_spa.function = SPA_ALL;
 
-  /* "spa_py.pyx":24
- *     spa.atmos_refract = 0.5667
+  /* "spa_py.pyx":28
+ *     spa.function = cspa_py.SPA_ALL
  * 
  *     err = cspa_py.spa_calculate(&spa)             # <<<<<<<<<<<<<<
  * 
@@ -1427,13 +1500,13 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
  */
   __pyx_v_err = spa_calculate((&__pyx_v_spa));
 
-  /* "spa_py.pyx":26
+  /* "spa_py.pyx":30
  *     err = cspa_py.spa_calculate(&spa)
  * 
  *     return spa             # <<<<<<<<<<<<<<
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_3 = __pyx_convert__to_py_spa_data(__pyx_v_spa); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 26, __pyx_L1_error)
+  __pyx_t_3 = __pyx_convert__to_py_spa_data(__pyx_v_spa); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 30, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_3);
   __pyx_r = __pyx_t_3;
   __pyx_t_3 = 0;
@@ -1442,9 +1515,9 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
   /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):             # <<<<<<<<<<<<<<
- *     cdef cspa_py.spa_data spa
- * 
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ *         longitude, elevation, pressure, temperature, delta_t,
+ *         delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
  */
 
   /* function exit code */
@@ -1496,6 +1569,7 @@ static struct PyModuleDef __pyx_moduledef = {
 
 static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_atmos_refract, __pyx_k_atmos_refract, sizeof(__pyx_k_atmos_refract), 0, 0, 1, 1},
+  {&__pyx_n_s_axm_rotation, __pyx_k_axm_rotation, sizeof(__pyx_k_axm_rotation), 0, 0, 1, 1},
   {&__pyx_n_s_azimuth, __pyx_k_azimuth, sizeof(__pyx_k_azimuth), 0, 0, 1, 1},
   {&__pyx_n_s_azimuth_astro, __pyx_k_azimuth_astro, sizeof(__pyx_k_azimuth_astro), 0, 0, 1, 1},
   {&__pyx_n_s_azm_rotation, __pyx_k_azm_rotation, sizeof(__pyx_k_azm_rotation), 0, 0, 1, 1},
@@ -1543,14 +1617,14 @@ static int __Pyx_InitCachedConstants(void) {
   /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):             # <<<<<<<<<<<<<<
- *     cdef cspa_py.spa_data spa
- * 
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ *         longitude, elevation, pressure, temperature, delta_t,
+ *         delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
  */
-  __pyx_tuple_ = PyTuple_Pack(15, __pyx_n_s_year, __pyx_n_s_month, __pyx_n_s_day, __pyx_n_s_hour, __pyx_n_s_minute, __pyx_n_s_second, __pyx_n_s_time_zone, __pyx_n_s_latitude, __pyx_n_s_longitude, __pyx_n_s_elevation, __pyx_n_s_pressure, __pyx_n_s_temperature, __pyx_n_s_delta_t, __pyx_n_s_spa, __pyx_n_s_err); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 3, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(19, __pyx_n_s_year, __pyx_n_s_month, __pyx_n_s_day, __pyx_n_s_hour, __pyx_n_s_minute, __pyx_n_s_second, __pyx_n_s_time_zone, __pyx_n_s_latitude, __pyx_n_s_longitude, __pyx_n_s_elevation, __pyx_n_s_pressure, __pyx_n_s_temperature, __pyx_n_s_delta_t, __pyx_n_s_delta_ut1, __pyx_n_s_slope, __pyx_n_s_axm_rotation, __pyx_n_s_atmos_refract, __pyx_n_s_spa, __pyx_n_s_err); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 3, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
-  __pyx_codeobj__2 = (PyObject*)__Pyx_PyCode_New(13, 0, 15, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple_, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_spa_py_pyx, __pyx_n_s_spa_calc, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__2)) __PYX_ERR(0, 3, __pyx_L1_error)
+  __pyx_codeobj__2 = (PyObject*)__Pyx_PyCode_New(17, 0, 19, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple_, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_spa_py_pyx, __pyx_n_s_spa_calc, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__2)) __PYX_ERR(0, 3, __pyx_L1_error)
   __Pyx_RefNannyFinishContext();
   return 0;
   __pyx_L1_error:;
@@ -1560,6 +1634,10 @@ static int __Pyx_InitCachedConstants(void) {
 
 static int __Pyx_InitGlobals(void) {
   if (__Pyx_InitStrings(__pyx_string_tab) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
+  __pyx_float_30_0 = PyFloat_FromDouble(30.0); if (unlikely(!__pyx_float_30_0)) __PYX_ERR(0, 1, __pyx_L1_error)
+  __pyx_float_0_5667 = PyFloat_FromDouble(0.5667); if (unlikely(!__pyx_float_0_5667)) __PYX_ERR(0, 1, __pyx_L1_error)
+  __pyx_int_0 = PyInt_FromLong(0); if (unlikely(!__pyx_int_0)) __PYX_ERR(0, 1, __pyx_L1_error)
+  __pyx_int_neg_10 = PyInt_FromLong(-10); if (unlikely(!__pyx_int_neg_10)) __PYX_ERR(0, 1, __pyx_L1_error)
   return 0;
   __pyx_L1_error:;
   return -1;
@@ -1805,9 +1883,9 @@ if (!__Pyx_RefNanny) {
   /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):             # <<<<<<<<<<<<<<
- *     cdef cspa_py.spa_data spa
- * 
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ *         longitude, elevation, pressure, temperature, delta_t,
+ *         delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
  */
   __pyx_t_1 = PyCFunction_NewEx(&__pyx_mdef_6spa_py_1spa_calc, NULL, __pyx_n_s_spa_py); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 3, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
@@ -1817,7 +1895,7 @@ if (!__Pyx_RefNanny) {
   /* "spa_py.pyx":1
  * cimport cspa_py             # <<<<<<<<<<<<<<
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
  */
   __pyx_t_1 = __Pyx_PyDict_NewPresized(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/pvlib/spa_c_files/spa_py.pyx b/pvlib/spa_c_files/spa_py.pyx
index fb8ed89b54..d1c5be79af 100644
--- a/pvlib/spa_c_files/spa_py.pyx
+++ b/pvlib/spa_c_files/spa_py.pyx
@@ -1,6 +1,9 @@
 cimport cspa_py
 
-def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longitude, elevation, pressure, temperature, delta_t):
+def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
+        longitude, elevation, pressure, temperature, delta_t,
+        delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
+
     cdef cspa_py.spa_data spa
 
     spa.year = year
@@ -10,17 +13,18 @@ def spa_calc(year, month, day, hour, minute, second, time_zone, latitude, longit
     spa.minute = minute
     spa.second = second
     spa.time_zone = time_zone
-    spa.delta_ut1 = 0
+    spa.delta_ut1 = delta_ut1
     spa.delta_t = delta_t
     spa.longitude = longitude
     spa.latitude = latitude
     spa.elevation = elevation
     spa.pressure = pressure
     spa.temperature = temperature
-    spa.slope = 30
-    spa.azm_rotation = -10
-    spa.atmos_refract = 0.5667
+    spa.slope = slope
+    spa.azm_rotation = axm_rotation
+    spa.atmos_refract = atmos_refract
+    spa.function = cspa_py.SPA_ALL
 
     err = cspa_py.spa_calculate(&spa)
 
-    return spa
\ No newline at end of file
+    return spa
diff --git a/pvlib/spa_c_files/spa_py_example.py b/pvlib/spa_c_files/spa_py_example.py
new file mode 100644
index 0000000000..4b3cf3bc9d
--- /dev/null
+++ b/pvlib/spa_c_files/spa_py_example.py
@@ -0,0 +1,44 @@
+from spa_py import spa_calc
+import numpy as np
+
+EXPECTED = {
+    'year': 2004,
+    'month': 10,
+    'day': 17,
+    'hour': 12,
+    'minute': 30,
+    'second': 30.0,
+    'delta_ut1': 0.0,
+    'delta_t': 67.0,
+    'time_zone': -7.0,
+    'longitude': -105.1786,
+    'latitude': 39.742476,
+    'elevation': 1830.14,
+    'pressure': 820.0,
+    'temperature': 11.0,
+    'slope': 30.0,
+    'azm_rotation': -10.0,
+    'atmos_refract': 0.5667,
+    'function': 3,
+    'e0': 39.59209464796398,
+    'e': 39.60858878898177,
+    'zenith': 50.39141121101823,
+    'azimuth_astro': 14.311961805946808,
+    'azimuth': 194.3119618059468,
+    'incidence': 25.42168493680471,
+    'suntransit': 11.765833793714224,
+    'sunrise': 6.22578372122376,
+    'sunset': 17.320379610556166
+}
+
+
+def spa_calc_example(test=True):
+    result = spa_calc(
+        year=2004, month=10, day=17, hour=12, minute=30, second=30,
+        time_zone=-7, longitude=-105.1786, latitude=39.742476,
+        elevation=1830.14, pressure=820, temperature=11, delta_t=67
+    )
+    if test:
+        for fieldname, expected_value in EXPECTED.items():
+            assert np.isclose(result[fieldname], expected_value)
+    return result

From 7ab8b642f013071ad2a80c6a0a3b0191181f5093 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 14:50:23 -0700
Subject: [PATCH 03/16] ENH: mention test exampleg, fix azm_rotation typo

---
 pvlib/spa_c_files/README.md  | 43 +++++++++++++++++++++++++++++++++++-
 pvlib/spa_c_files/spa_py.c   | 39 +++++++++++++++-----------------
 pvlib/spa_c_files/spa_py.pyx |  4 ++--
 3 files changed, 62 insertions(+), 24 deletions(-)

diff --git a/pvlib/spa_c_files/README.md b/pvlib/spa_c_files/README.md
index 4d3ecf2348..261ab6652f 100644
--- a/pvlib/spa_c_files/README.md
+++ b/pvlib/spa_c_files/README.md
@@ -37,4 +37,45 @@ folder:
 Executing the build command will also download the ``spa.c`` and ``spa.h``
 files from NREL and copy them into the ``pvlib/spa_c_files`` directory.
 
-This build process may not be not compatible with Python-2.7.
\ No newline at end of file
+This build process may not be not compatible with Python-2.7.
+
+There are four optional keyword arguments `delta_ut1=0`, `slope=30.0`,
+`azm_rotation=-10`, `atmos_refract` that effect four optional return values
+`incidence`, `suntransit`, `sunrise`, and `sunset`. If not given, the defaults
+shown are used.
+
+There is an example in `spa_py_example.py` that contains a test function called
+`spa_calc_example` that users can use to check that the result is consistent
+with expected values:
+
+    >>> from spa_py_example import spa_calc_example
+    >>> r = spa_calc_example()
+    {
+        'year': 2004,
+        'month': 10,
+        'day': 17,
+        'hour': 12,
+        'minute': 30,
+        'second': 30.0,
+        'delta_ut1': 0.0,
+        'delta_t': 67.0,
+        'time_zone': -7.0,
+        'longitude': -105.1786,
+        'latitude': 39.742476,
+        'elevation': 1830.14,
+        'pressure': 820.0,
+        'temperature': 11.0,
+        'slope': 30.0,
+        'azm_rotation': -10.0,
+        'atmos_refract': 0.5667,
+        'function': 3,
+        'e0': 39.59209464796398,
+        'e': 39.60858878898177,
+        'zenith': 50.39141121101823,
+        'azimuth_astro': 14.311961805946808,
+        'azimuth': 194.3119618059468,
+        'incidence': 25.42168493680471,
+        'suntransit': 11.765833793714224,
+        'sunrise': 6.22578372122376,
+        'sunset': 17.320379610556166
+    }
diff --git a/pvlib/spa_c_files/spa_py.c b/pvlib/spa_c_files/spa_py.c
index 61291b064f..378c34c14a 100644
--- a/pvlib/spa_c_files/spa_py.c
+++ b/pvlib/spa_c_files/spa_py.c
@@ -1007,13 +1007,11 @@ static const char __pyx_k_time_zone[] = "time_zone";
 static const char __pyx_k_spa_py_pyx[] = "spa_py.pyx";
 static const char __pyx_k_suntransit[] = "suntransit";
 static const char __pyx_k_temperature[] = "temperature";
-static const char __pyx_k_axm_rotation[] = "axm_rotation";
 static const char __pyx_k_azm_rotation[] = "azm_rotation";
 static const char __pyx_k_atmos_refract[] = "atmos_refract";
 static const char __pyx_k_azimuth_astro[] = "azimuth_astro";
 static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
 static PyObject *__pyx_n_s_atmos_refract;
-static PyObject *__pyx_n_s_axm_rotation;
 static PyObject *__pyx_n_s_azimuth;
 static PyObject *__pyx_n_s_azimuth_astro;
 static PyObject *__pyx_n_s_azm_rotation;
@@ -1048,7 +1046,7 @@ static PyObject *__pyx_n_s_test;
 static PyObject *__pyx_n_s_time_zone;
 static PyObject *__pyx_n_s_year;
 static PyObject *__pyx_n_s_zenith;
-static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_axm_rotation, PyObject *__pyx_v_atmos_refract); /* proto */
+static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_azm_rotation, PyObject *__pyx_v_atmos_refract); /* proto */
 static PyObject *__pyx_float_30_0;
 static PyObject *__pyx_float_0_5667;
 static PyObject *__pyx_int_0;
@@ -1062,7 +1060,7 @@ static PyObject *__pyx_codeobj__2;
  * 
  * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
  *         longitude, elevation, pressure, temperature, delta_t,
- *         delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
+ *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
  */
 
 /* Python wrapper */
@@ -1084,13 +1082,13 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
   PyObject *__pyx_v_delta_t = 0;
   PyObject *__pyx_v_delta_ut1 = 0;
   PyObject *__pyx_v_slope = 0;
-  PyObject *__pyx_v_axm_rotation = 0;
+  PyObject *__pyx_v_azm_rotation = 0;
   PyObject *__pyx_v_atmos_refract = 0;
   PyObject *__pyx_r = 0;
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("spa_calc (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_time_zone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,&__pyx_n_s_delta_ut1,&__pyx_n_s_slope,&__pyx_n_s_axm_rotation,&__pyx_n_s_atmos_refract,0};
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_time_zone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,&__pyx_n_s_delta_ut1,&__pyx_n_s_slope,&__pyx_n_s_azm_rotation,&__pyx_n_s_atmos_refract,0};
     PyObject* values[17] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
     values[13] = ((PyObject *)__pyx_int_0);
     values[14] = ((PyObject *)__pyx_float_30_0);
@@ -1229,7 +1227,7 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
         CYTHON_FALLTHROUGH;
         case 15:
         if (kw_args > 0) {
-          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_axm_rotation);
+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_azm_rotation);
           if (value) { values[15] = value; kw_args--; }
         }
         CYTHON_FALLTHROUGH;
@@ -1284,7 +1282,7 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
     __pyx_v_delta_t = values[12];
     __pyx_v_delta_ut1 = values[13];
     __pyx_v_slope = values[14];
-    __pyx_v_axm_rotation = values[15];
+    __pyx_v_azm_rotation = values[15];
     __pyx_v_atmos_refract = values[16];
   }
   goto __pyx_L4_argument_unpacking_done;
@@ -1295,14 +1293,14 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_6spa_py_spa_calc(__pyx_self, __pyx_v_year, __pyx_v_month, __pyx_v_day, __pyx_v_hour, __pyx_v_minute, __pyx_v_second, __pyx_v_time_zone, __pyx_v_latitude, __pyx_v_longitude, __pyx_v_elevation, __pyx_v_pressure, __pyx_v_temperature, __pyx_v_delta_t, __pyx_v_delta_ut1, __pyx_v_slope, __pyx_v_axm_rotation, __pyx_v_atmos_refract);
+  __pyx_r = __pyx_pf_6spa_py_spa_calc(__pyx_self, __pyx_v_year, __pyx_v_month, __pyx_v_day, __pyx_v_hour, __pyx_v_minute, __pyx_v_second, __pyx_v_time_zone, __pyx_v_latitude, __pyx_v_longitude, __pyx_v_elevation, __pyx_v_pressure, __pyx_v_temperature, __pyx_v_delta_t, __pyx_v_delta_ut1, __pyx_v_slope, __pyx_v_azm_rotation, __pyx_v_atmos_refract);
 
   /* function exit code */
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_axm_rotation, PyObject *__pyx_v_atmos_refract) {
+static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_azm_rotation, PyObject *__pyx_v_atmos_refract) {
   spa_data __pyx_v_spa;
   CYTHON_UNUSED int __pyx_v_err;
   PyObject *__pyx_r = NULL;
@@ -1447,7 +1445,7 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
  *     spa.pressure = pressure
  *     spa.temperature = temperature             # <<<<<<<<<<<<<<
  *     spa.slope = slope
- *     spa.azm_rotation = axm_rotation
+ *     spa.azm_rotation = azm_rotation
  */
   __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_temperature); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 22, __pyx_L1_error)
   __pyx_v_spa.temperature = __pyx_t_2;
@@ -1456,7 +1454,7 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
  *     spa.pressure = pressure
  *     spa.temperature = temperature
  *     spa.slope = slope             # <<<<<<<<<<<<<<
- *     spa.azm_rotation = axm_rotation
+ *     spa.azm_rotation = azm_rotation
  *     spa.atmos_refract = atmos_refract
  */
   __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_slope); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 23, __pyx_L1_error)
@@ -1465,16 +1463,16 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
   /* "spa_py.pyx":24
  *     spa.temperature = temperature
  *     spa.slope = slope
- *     spa.azm_rotation = axm_rotation             # <<<<<<<<<<<<<<
+ *     spa.azm_rotation = azm_rotation             # <<<<<<<<<<<<<<
  *     spa.atmos_refract = atmos_refract
  *     spa.function = cspa_py.SPA_ALL
  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_axm_rotation); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 24, __pyx_L1_error)
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_azm_rotation); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 24, __pyx_L1_error)
   __pyx_v_spa.azm_rotation = __pyx_t_2;
 
   /* "spa_py.pyx":25
  *     spa.slope = slope
- *     spa.azm_rotation = axm_rotation
+ *     spa.azm_rotation = azm_rotation
  *     spa.atmos_refract = atmos_refract             # <<<<<<<<<<<<<<
  *     spa.function = cspa_py.SPA_ALL
  * 
@@ -1483,7 +1481,7 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
   __pyx_v_spa.atmos_refract = __pyx_t_2;
 
   /* "spa_py.pyx":26
- *     spa.azm_rotation = axm_rotation
+ *     spa.azm_rotation = azm_rotation
  *     spa.atmos_refract = atmos_refract
  *     spa.function = cspa_py.SPA_ALL             # <<<<<<<<<<<<<<
  * 
@@ -1517,7 +1515,7 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
  * 
  * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
  *         longitude, elevation, pressure, temperature, delta_t,
- *         delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
+ *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
  */
 
   /* function exit code */
@@ -1569,7 +1567,6 @@ static struct PyModuleDef __pyx_moduledef = {
 
 static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_atmos_refract, __pyx_k_atmos_refract, sizeof(__pyx_k_atmos_refract), 0, 0, 1, 1},
-  {&__pyx_n_s_axm_rotation, __pyx_k_axm_rotation, sizeof(__pyx_k_axm_rotation), 0, 0, 1, 1},
   {&__pyx_n_s_azimuth, __pyx_k_azimuth, sizeof(__pyx_k_azimuth), 0, 0, 1, 1},
   {&__pyx_n_s_azimuth_astro, __pyx_k_azimuth_astro, sizeof(__pyx_k_azimuth_astro), 0, 0, 1, 1},
   {&__pyx_n_s_azm_rotation, __pyx_k_azm_rotation, sizeof(__pyx_k_azm_rotation), 0, 0, 1, 1},
@@ -1619,9 +1616,9 @@ static int __Pyx_InitCachedConstants(void) {
  * 
  * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
  *         longitude, elevation, pressure, temperature, delta_t,
- *         delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
+ *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
  */
-  __pyx_tuple_ = PyTuple_Pack(19, __pyx_n_s_year, __pyx_n_s_month, __pyx_n_s_day, __pyx_n_s_hour, __pyx_n_s_minute, __pyx_n_s_second, __pyx_n_s_time_zone, __pyx_n_s_latitude, __pyx_n_s_longitude, __pyx_n_s_elevation, __pyx_n_s_pressure, __pyx_n_s_temperature, __pyx_n_s_delta_t, __pyx_n_s_delta_ut1, __pyx_n_s_slope, __pyx_n_s_axm_rotation, __pyx_n_s_atmos_refract, __pyx_n_s_spa, __pyx_n_s_err); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 3, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(19, __pyx_n_s_year, __pyx_n_s_month, __pyx_n_s_day, __pyx_n_s_hour, __pyx_n_s_minute, __pyx_n_s_second, __pyx_n_s_time_zone, __pyx_n_s_latitude, __pyx_n_s_longitude, __pyx_n_s_elevation, __pyx_n_s_pressure, __pyx_n_s_temperature, __pyx_n_s_delta_t, __pyx_n_s_delta_ut1, __pyx_n_s_slope, __pyx_n_s_azm_rotation, __pyx_n_s_atmos_refract, __pyx_n_s_spa, __pyx_n_s_err); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 3, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
   __pyx_codeobj__2 = (PyObject*)__Pyx_PyCode_New(17, 0, 19, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple_, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_spa_py_pyx, __pyx_n_s_spa_calc, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__2)) __PYX_ERR(0, 3, __pyx_L1_error)
@@ -1885,7 +1882,7 @@ if (!__Pyx_RefNanny) {
  * 
  * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
  *         longitude, elevation, pressure, temperature, delta_t,
- *         delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
+ *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
  */
   __pyx_t_1 = PyCFunction_NewEx(&__pyx_mdef_6spa_py_1spa_calc, NULL, __pyx_n_s_spa_py); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 3, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/pvlib/spa_c_files/spa_py.pyx b/pvlib/spa_c_files/spa_py.pyx
index d1c5be79af..10b89eaaea 100644
--- a/pvlib/spa_c_files/spa_py.pyx
+++ b/pvlib/spa_c_files/spa_py.pyx
@@ -2,7 +2,7 @@ cimport cspa_py
 
 def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
         longitude, elevation, pressure, temperature, delta_t,
-        delta_ut1=0, slope=30.0, axm_rotation=-10, atmos_refract=0.5667):
+        delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
 
     cdef cspa_py.spa_data spa
 
@@ -21,7 +21,7 @@ def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
     spa.pressure = pressure
     spa.temperature = temperature
     spa.slope = slope
-    spa.azm_rotation = axm_rotation
+    spa.azm_rotation = azm_rotation
     spa.atmos_refract = atmos_refract
     spa.function = cspa_py.SPA_ALL
 

From 1b4a73c099276e8434c9e69ee7d9611a8dceb140 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 15:13:45 -0700
Subject: [PATCH 04/16] ENH: fix link, force reader to accept license, wrap
 long lines, update email, (c)

---
 pvlib/spa_c_files/README.md     |  2 +-
 pvlib/spa_c_files/SPA_NOTICE.md | 44 +++++++++++++++++++++++++++++----
 pvlib/spa_c_files/setup.py      |  6 +++++
 3 files changed, 46 insertions(+), 6 deletions(-)

diff --git a/pvlib/spa_c_files/README.md b/pvlib/spa_c_files/README.md
index 261ab6652f..3317f6a1ad 100644
--- a/pvlib/spa_c_files/README.md
+++ b/pvlib/spa_c_files/README.md
@@ -8,7 +8,7 @@ This folder contains the files required to make NREL's C code accessible
 to the ``pvlib-python`` package. We use the Cython package to wrap NREL's SPA 
 implementation. 
 
-** Due to licensing issues, the [SPA C files](http://www.nrel.gov/midc/spa) can
+** Due to licensing issues, the [SPA C files](https://midcdmz.nrel.gov/spa/) can
 _not_ be included in the pvlib-python distribution. The SPA C files will be
 downloaded when you build the Python extension. By using this module you agree
 to the NREL license in SPA_NOTICE. **
diff --git a/pvlib/spa_c_files/SPA_NOTICE.md b/pvlib/spa_c_files/SPA_NOTICE.md
index 70ee756728..e7f806fc74 100644
--- a/pvlib/spa_c_files/SPA_NOTICE.md
+++ b/pvlib/spa_c_files/SPA_NOTICE.md
@@ -1,5 +1,39 @@
-NOTICE
-Copyright © 2008-2011 Alliance for Sustainable Energy, LLC, All Rights Reserved
-The Solar Position Algorithm ("Software") is code in development prepared by employees of the Alliance for Sustainable Energy, LLC, (hereinafter the "Contractor"), under Contract No. DE-AC36-08GO28308 ("Contract") with the U.S. Department of Energy (the "DOE"). The United States Government has been granted for itself and others acting on its behalf a paid-up, non-exclusive, irrevocable, worldwide license in the Software to reproduce, prepare derivative works, and perform publicly and display publicly. Beginning five (5) years after the date permission to assert copyright is obtained from the DOE, and subject to any subsequent five (5) year renewals, the United States Government is granted for itself and others acting on its behalf a paid-up, non-exclusive, irrevocable, worldwide license in the Software to reproduce, prepare derivative works, distribute copies to the public, perform publicly and display publicly, and to permit others to do so. If the Contractor ceases to make this computer software available, it may be obtained from DOE's Office of Scientific and Technical Information's Energy Science and Technology Software Center (ESTSC) at P.O. Box 1020, Oak Ridge, TN 37831-1020. THIS SOFTWARE IS PROVIDED BY THE CONTRACTOR "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CONTRACTOR OR THE U.S. GOVERNMENT BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, INCLUDING BUT NOT LIMITED TO CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR PROFITS, WHICH MAY RESULT FROM AN ACTION IN CONTRACT, NEGLIGENCE OR OTHER TORTIOUS CLAIM THAT ARISES OUT OF OR IN CONNECTION WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
-The Software is being provided for internal, noncommercial purposes only and shall not be re-distributed. Please contact Jennifer Ramsey in the NREL Commercialization and Technology Transfer Office for information concerning a commercial license to use the Software.
-As a condition of using the Software in an application, the developer of the application agrees to reference the use of the Software and make this Notice readily accessible to any end-user in a Help|About screen or equivalent manner.
\ No newline at end of file
+# NOTICE
+
+Copyright (c) 2008-2011 Alliance for Sustainable Energy, LLC, All Rights Reserved
+
+The Solar Position Algorithm ("Software") is code in development prepared by 
+employees of the Alliance for Sustainable Energy, LLC, (hereinafter the 
+"Contractor"), under Contract No. DE-AC36-08GO28308 ("Contract") with the 
+U.S. Department of Energy (the "DOE"). The United States Government has been 
+granted for itself and others acting on its behalf a paid-up, non-exclusive, 
+irrevocable, worldwide license in the Software to reproduce, prepare 
+derivative works, and perform publicly and display publicly. Beginning five 
+(5) years after the date permission to assert copyright is obtained from the 
+DOE, and subject to any subsequent five (5) year renewals, the United States 
+Government is granted for itself and others acting on its behalf a paid-up, 
+non-exclusive, irrevocable, worldwide license in the Software to reproduce, 
+prepare derivative works, distribute copies to the public, perform publicly 
+and display publicly, and to permit others to do so. If the Contractor ceases 
+to make this computer software available, it may be obtained from DOE's 
+Office of Scientific and Technical Information's Energy Science and 
+Technology Software Center (ESTSC) at P.O. Box 1020, Oak Ridge, TN 
+37831-1020. THIS SOFTWARE IS PROVIDED BY THE CONTRACTOR "AS IS" AND ANY 
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE IMPLIED 
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+DISCLAIMED. IN NO EVENT SHALL THE CONTRACTOR OR THE U.S. GOVERNMENT BE LIABLE 
+FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER, 
+INCLUDING BUT NOT LIMITED TO CLAIMS ASSOCIATED WITH THE LOSS OF DATA OR 
+PROFITS, WHICH MAY RESULT FROM AN ACTION IN CONTRACT, NEGLIGENCE OR OTHER 
+TORTIOUS CLAIM THAT ARISES OUT OF OR IN CONNECTION WITH THE ACCESS, USE OR 
+PERFORMANCE OF THIS SOFTWARE.
+
+The Software is being provided for internal, noncommercial purposes only and 
+shall not be re-distributed. Please contact [Jean 
+Schulte](mailto:Jean.Schulte@nrel.gov) in the NREL Commercialization and 
+Technology Transfer Office for information concerning a commercial license to 
+use the Software.
+
+As a condition of using the Software in an application, the developer of the 
+application agrees to reference the use of the Software and make this Notice 
+readily accessible to any end-user in a Help|About screen or equivalent manner.
diff --git a/pvlib/spa_c_files/setup.py b/pvlib/spa_c_files/setup.py
index fb0fecea40..c089f431a5 100644
--- a/pvlib/spa_c_files/setup.py
+++ b/pvlib/spa_c_files/setup.py
@@ -16,6 +16,7 @@
     'software': 'SPA'
 }
 DATA = parse.urlencode(VALUES).encode('ascii')
+LICENSE = 'SPA_NOTICE.md'
 
 # get spa.c
 REQ = request.Request(SPA_C_URL, DATA)
@@ -31,6 +32,11 @@
 with open(os.path.join(DIRNAME, 'spa.h'), 'wb') as f:
     f.write(SPA_H)
 
+with open(os.path.join(DIRNAME, LICENSE)) as f:
+    print(f.read())
+
+input('By continuing you accept the NREL LICENSE. Press any key ...')
+
 setup(
     ext_modules=cythonize([Extension('spa_py', ['spa_py.pyx', 'spa.c'])])
 )

From e2232f1822c2b613aacb84d8b157f503f920beed Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 15:31:42 -0700
Subject: [PATCH 05/16] ENH: ask user for their name, fail ungracefully

---
 pvlib/spa_c_files/setup.py | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/pvlib/spa_c_files/setup.py b/pvlib/spa_c_files/setup.py
index c089f431a5..6621943c88 100644
--- a/pvlib/spa_c_files/setup.py
+++ b/pvlib/spa_c_files/setup.py
@@ -10,14 +10,19 @@
 SPA_C_URL = r'https://midcdmz.nrel.gov/apps/download.pl'
 SPA_H_URL = r'https://midcdmz.nrel.gov/spa/spa.h'
 VALUES = {
-    'name': 'pvlib-python',
     'country': 'US',
     'company': 'Individual',
     'software': 'SPA'
 }
-DATA = parse.urlencode(VALUES).encode('ascii')
 LICENSE = 'SPA_NOTICE.md'
 
+with open(os.path.join(DIRNAME, LICENSE)) as f:
+    print(f.read())
+
+VALUES['name'] = input('Enter your name to accept the NREL LICENSE: ')
+# b'Name must be atleast 2 valid characters.'
+DATA = parse.urlencode(VALUES).encode('ascii')
+
 # get spa.c
 REQ = request.Request(SPA_C_URL, DATA)
 with request.urlopen(REQ) as response:
@@ -32,11 +37,6 @@
 with open(os.path.join(DIRNAME, 'spa.h'), 'wb') as f:
     f.write(SPA_H)
 
-with open(os.path.join(DIRNAME, LICENSE)) as f:
-    print(f.read())
-
-input('By continuing you accept the NREL LICENSE. Press any key ...')
-
 setup(
     ext_modules=cythonize([Extension('spa_py', ['spa_py.pyx', 'spa.c'])])
 )

From feb1f3672348238c3ae9e2de503c07f8b2b6fb35 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 16:05:19 -0700
Subject: [PATCH 06/16] ENH: get all information to submit to DOE

---
 pvlib/spa_c_files/setup.py | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/pvlib/spa_c_files/setup.py b/pvlib/spa_c_files/setup.py
index 6621943c88..24cdba582a 100644
--- a/pvlib/spa_c_files/setup.py
+++ b/pvlib/spa_c_files/setup.py
@@ -9,18 +9,17 @@
 DIRNAME = os.path.dirname(__file__)
 SPA_C_URL = r'https://midcdmz.nrel.gov/apps/download.pl'
 SPA_H_URL = r'https://midcdmz.nrel.gov/spa/spa.h'
-VALUES = {
-    'country': 'US',
-    'company': 'Individual',
-    'software': 'SPA'
-}
+VALUES = {'software': 'SPA'}
 LICENSE = 'SPA_NOTICE.md'
 
 with open(os.path.join(DIRNAME, LICENSE)) as f:
     print(f.read())
 
-VALUES['name'] = input('Enter your name to accept the NREL LICENSE: ')
-# b'Name must be atleast 2 valid characters.'
+print('\nEnter the following information to accept the NREL LICENSE ...\n')
+VALUES['name'] = input('Name: ')
+VALUES['company'] = input('Company (or enter "Individual"): ')
+VALUES['country'] = input('Country: ')
+VALUES['email'] = input('Email (optional): ')
 DATA = parse.urlencode(VALUES).encode('ascii')
 
 # get spa.c

From 162e7122d90290168bcb9fa67b6e2e958aa61a68 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 16:52:10 -0700
Subject: [PATCH 07/16] use timezone as arg, change output to timezone

---
 pvlib/solarposition.py              |  2 +-
 pvlib/spa_c_files/spa_py.c          | 41 ++++++++++++++++-------------
 pvlib/spa_c_files/spa_py.pyx        |  4 +--
 pvlib/spa_c_files/spa_py_example.py |  2 +-
 4 files changed, 26 insertions(+), 23 deletions(-)

diff --git a/pvlib/solarposition.py b/pvlib/solarposition.py
index 9986b1de72..21ab127127 100644
--- a/pvlib/solarposition.py
+++ b/pvlib/solarposition.py
@@ -206,7 +206,7 @@ def spa_c(time, latitude, longitude, pressure=101325, altitude=0,
     spa_df = pd.DataFrame(spa_out, index=time)
 
     if raw_spa_output:
-        return spa_df
+        return spa_df.rename(columns={'time_zone': 'timezone'})
     else:
         dfout = pd.DataFrame({'azimuth': spa_df['azimuth'],
                               'apparent_zenith': spa_df['zenith'],
diff --git a/pvlib/spa_c_files/spa_py.c b/pvlib/spa_c_files/spa_py.c
index 378c34c14a..a98491f934 100644
--- a/pvlib/spa_c_files/spa_py.c
+++ b/pvlib/spa_c_files/spa_py.c
@@ -999,6 +999,7 @@ static const char __pyx_k_function[] = "function";
 static const char __pyx_k_latitude[] = "latitude";
 static const char __pyx_k_pressure[] = "pressure";
 static const char __pyx_k_spa_calc[] = "spa_calc";
+static const char __pyx_k_timezone[] = "timezone";
 static const char __pyx_k_delta_ut1[] = "delta_ut1";
 static const char __pyx_k_elevation[] = "elevation";
 static const char __pyx_k_incidence[] = "incidence";
@@ -1044,9 +1045,10 @@ static PyObject *__pyx_n_s_suntransit;
 static PyObject *__pyx_n_s_temperature;
 static PyObject *__pyx_n_s_test;
 static PyObject *__pyx_n_s_time_zone;
+static PyObject *__pyx_n_s_timezone;
 static PyObject *__pyx_n_s_year;
 static PyObject *__pyx_n_s_zenith;
-static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_azm_rotation, PyObject *__pyx_v_atmos_refract); /* proto */
+static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_timezone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_azm_rotation, PyObject *__pyx_v_atmos_refract); /* proto */
 static PyObject *__pyx_float_30_0;
 static PyObject *__pyx_float_0_5667;
 static PyObject *__pyx_int_0;
@@ -1058,7 +1060,7 @@ static PyObject *__pyx_codeobj__2;
 /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ * def spa_calc(year, month, day, hour, minute, second, timezone, latitude,             # <<<<<<<<<<<<<<
  *         longitude, elevation, pressure, temperature, delta_t,
  *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
  */
@@ -1073,7 +1075,7 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
   PyObject *__pyx_v_hour = 0;
   PyObject *__pyx_v_minute = 0;
   PyObject *__pyx_v_second = 0;
-  PyObject *__pyx_v_time_zone = 0;
+  PyObject *__pyx_v_timezone = 0;
   PyObject *__pyx_v_latitude = 0;
   PyObject *__pyx_v_longitude = 0;
   PyObject *__pyx_v_elevation = 0;
@@ -1088,7 +1090,7 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("spa_calc (wrapper)", 0);
   {
-    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_time_zone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,&__pyx_n_s_delta_ut1,&__pyx_n_s_slope,&__pyx_n_s_azm_rotation,&__pyx_n_s_atmos_refract,0};
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_timezone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,&__pyx_n_s_delta_ut1,&__pyx_n_s_slope,&__pyx_n_s_azm_rotation,&__pyx_n_s_atmos_refract,0};
     PyObject* values[17] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
     values[13] = ((PyObject *)__pyx_int_0);
     values[14] = ((PyObject *)__pyx_float_30_0);
@@ -1172,7 +1174,7 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
         }
         CYTHON_FALLTHROUGH;
         case  6:
-        if (likely((values[6] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_time_zone)) != 0)) kw_args--;
+        if (likely((values[6] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_timezone)) != 0)) kw_args--;
         else {
           __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 6); __PYX_ERR(0, 3, __pyx_L3_error)
         }
@@ -1273,7 +1275,7 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
     __pyx_v_hour = values[3];
     __pyx_v_minute = values[4];
     __pyx_v_second = values[5];
-    __pyx_v_time_zone = values[6];
+    __pyx_v_timezone = values[6];
     __pyx_v_latitude = values[7];
     __pyx_v_longitude = values[8];
     __pyx_v_elevation = values[9];
@@ -1293,14 +1295,14 @@ static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__py
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_r = __pyx_pf_6spa_py_spa_calc(__pyx_self, __pyx_v_year, __pyx_v_month, __pyx_v_day, __pyx_v_hour, __pyx_v_minute, __pyx_v_second, __pyx_v_time_zone, __pyx_v_latitude, __pyx_v_longitude, __pyx_v_elevation, __pyx_v_pressure, __pyx_v_temperature, __pyx_v_delta_t, __pyx_v_delta_ut1, __pyx_v_slope, __pyx_v_azm_rotation, __pyx_v_atmos_refract);
+  __pyx_r = __pyx_pf_6spa_py_spa_calc(__pyx_self, __pyx_v_year, __pyx_v_month, __pyx_v_day, __pyx_v_hour, __pyx_v_minute, __pyx_v_second, __pyx_v_timezone, __pyx_v_latitude, __pyx_v_longitude, __pyx_v_elevation, __pyx_v_pressure, __pyx_v_temperature, __pyx_v_delta_t, __pyx_v_delta_ut1, __pyx_v_slope, __pyx_v_azm_rotation, __pyx_v_atmos_refract);
 
   /* function exit code */
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
 }
 
-static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_azm_rotation, PyObject *__pyx_v_atmos_refract) {
+static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_timezone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_azm_rotation, PyObject *__pyx_v_atmos_refract) {
   spa_data __pyx_v_spa;
   CYTHON_UNUSED int __pyx_v_err;
   PyObject *__pyx_r = NULL;
@@ -1355,7 +1357,7 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
  *     spa.hour = hour
  *     spa.minute = minute             # <<<<<<<<<<<<<<
  *     spa.second = second
- *     spa.time_zone = time_zone
+ *     spa.time_zone = timezone
  */
   __pyx_t_1 = __Pyx_PyInt_As_int(__pyx_v_minute); if (unlikely((__pyx_t_1 == (int)-1) && PyErr_Occurred())) __PYX_ERR(0, 13, __pyx_L1_error)
   __pyx_v_spa.minute = __pyx_t_1;
@@ -1364,7 +1366,7 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
  *     spa.hour = hour
  *     spa.minute = minute
  *     spa.second = second             # <<<<<<<<<<<<<<
- *     spa.time_zone = time_zone
+ *     spa.time_zone = timezone
  *     spa.delta_ut1 = delta_ut1
  */
   __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_second); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 14, __pyx_L1_error)
@@ -1373,16 +1375,16 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
   /* "spa_py.pyx":15
  *     spa.minute = minute
  *     spa.second = second
- *     spa.time_zone = time_zone             # <<<<<<<<<<<<<<
+ *     spa.time_zone = timezone             # <<<<<<<<<<<<<<
  *     spa.delta_ut1 = delta_ut1
  *     spa.delta_t = delta_t
  */
-  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_time_zone); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 15, __pyx_L1_error)
+  __pyx_t_2 = __pyx_PyFloat_AsDouble(__pyx_v_timezone); if (unlikely((__pyx_t_2 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 15, __pyx_L1_error)
   __pyx_v_spa.time_zone = __pyx_t_2;
 
   /* "spa_py.pyx":16
  *     spa.second = second
- *     spa.time_zone = time_zone
+ *     spa.time_zone = timezone
  *     spa.delta_ut1 = delta_ut1             # <<<<<<<<<<<<<<
  *     spa.delta_t = delta_t
  *     spa.longitude = longitude
@@ -1391,7 +1393,7 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
   __pyx_v_spa.delta_ut1 = __pyx_t_2;
 
   /* "spa_py.pyx":17
- *     spa.time_zone = time_zone
+ *     spa.time_zone = timezone
  *     spa.delta_ut1 = delta_ut1
  *     spa.delta_t = delta_t             # <<<<<<<<<<<<<<
  *     spa.longitude = longitude
@@ -1513,7 +1515,7 @@ static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, P
   /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ * def spa_calc(year, month, day, hour, minute, second, timezone, latitude,             # <<<<<<<<<<<<<<
  *         longitude, elevation, pressure, temperature, delta_t,
  *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
  */
@@ -1599,6 +1601,7 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s_temperature, __pyx_k_temperature, sizeof(__pyx_k_temperature), 0, 0, 1, 1},
   {&__pyx_n_s_test, __pyx_k_test, sizeof(__pyx_k_test), 0, 0, 1, 1},
   {&__pyx_n_s_time_zone, __pyx_k_time_zone, sizeof(__pyx_k_time_zone), 0, 0, 1, 1},
+  {&__pyx_n_s_timezone, __pyx_k_timezone, sizeof(__pyx_k_timezone), 0, 0, 1, 1},
   {&__pyx_n_s_year, __pyx_k_year, sizeof(__pyx_k_year), 0, 0, 1, 1},
   {&__pyx_n_s_zenith, __pyx_k_zenith, sizeof(__pyx_k_zenith), 0, 0, 1, 1},
   {0, 0, 0, 0, 0, 0, 0}
@@ -1614,11 +1617,11 @@ static int __Pyx_InitCachedConstants(void) {
   /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ * def spa_calc(year, month, day, hour, minute, second, timezone, latitude,             # <<<<<<<<<<<<<<
  *         longitude, elevation, pressure, temperature, delta_t,
  *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
  */
-  __pyx_tuple_ = PyTuple_Pack(19, __pyx_n_s_year, __pyx_n_s_month, __pyx_n_s_day, __pyx_n_s_hour, __pyx_n_s_minute, __pyx_n_s_second, __pyx_n_s_time_zone, __pyx_n_s_latitude, __pyx_n_s_longitude, __pyx_n_s_elevation, __pyx_n_s_pressure, __pyx_n_s_temperature, __pyx_n_s_delta_t, __pyx_n_s_delta_ut1, __pyx_n_s_slope, __pyx_n_s_azm_rotation, __pyx_n_s_atmos_refract, __pyx_n_s_spa, __pyx_n_s_err); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 3, __pyx_L1_error)
+  __pyx_tuple_ = PyTuple_Pack(19, __pyx_n_s_year, __pyx_n_s_month, __pyx_n_s_day, __pyx_n_s_hour, __pyx_n_s_minute, __pyx_n_s_second, __pyx_n_s_timezone, __pyx_n_s_latitude, __pyx_n_s_longitude, __pyx_n_s_elevation, __pyx_n_s_pressure, __pyx_n_s_temperature, __pyx_n_s_delta_t, __pyx_n_s_delta_ut1, __pyx_n_s_slope, __pyx_n_s_azm_rotation, __pyx_n_s_atmos_refract, __pyx_n_s_spa, __pyx_n_s_err); if (unlikely(!__pyx_tuple_)) __PYX_ERR(0, 3, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
   __pyx_codeobj__2 = (PyObject*)__Pyx_PyCode_New(17, 0, 19, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple_, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_spa_py_pyx, __pyx_n_s_spa_calc, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__2)) __PYX_ERR(0, 3, __pyx_L1_error)
@@ -1880,7 +1883,7 @@ if (!__Pyx_RefNanny) {
   /* "spa_py.pyx":3
  * cimport cspa_py
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ * def spa_calc(year, month, day, hour, minute, second, timezone, latitude,             # <<<<<<<<<<<<<<
  *         longitude, elevation, pressure, temperature, delta_t,
  *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
  */
@@ -1892,7 +1895,7 @@ if (!__Pyx_RefNanny) {
   /* "spa_py.pyx":1
  * cimport cspa_py             # <<<<<<<<<<<<<<
  * 
- * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
+ * def spa_calc(year, month, day, hour, minute, second, timezone, latitude,
  */
   __pyx_t_1 = __Pyx_PyDict_NewPresized(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_GOTREF(__pyx_t_1);
diff --git a/pvlib/spa_c_files/spa_py.pyx b/pvlib/spa_c_files/spa_py.pyx
index 10b89eaaea..971fd2edc0 100644
--- a/pvlib/spa_c_files/spa_py.pyx
+++ b/pvlib/spa_c_files/spa_py.pyx
@@ -1,6 +1,6 @@
 cimport cspa_py
 
-def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
+def spa_calc(year, month, day, hour, minute, second, timezone, latitude,
         longitude, elevation, pressure, temperature, delta_t,
         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
 
@@ -12,7 +12,7 @@ def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
     spa.hour = hour
     spa.minute = minute
     spa.second = second
-    spa.time_zone = time_zone
+    spa.time_zone = timezone
     spa.delta_ut1 = delta_ut1
     spa.delta_t = delta_t
     spa.longitude = longitude
diff --git a/pvlib/spa_c_files/spa_py_example.py b/pvlib/spa_c_files/spa_py_example.py
index 4b3cf3bc9d..7fc22b2745 100644
--- a/pvlib/spa_c_files/spa_py_example.py
+++ b/pvlib/spa_c_files/spa_py_example.py
@@ -35,7 +35,7 @@
 def spa_calc_example(test=True):
     result = spa_calc(
         year=2004, month=10, day=17, hour=12, minute=30, second=30,
-        time_zone=-7, longitude=-105.1786, latitude=39.742476,
+        timezone=-7, longitude=-105.1786, latitude=39.742476,
         elevation=1830.14, pressure=820, temperature=11, delta_t=67
     )
     if test:

From d04dc512ac3513eb6055fe3a93709ee77b385275 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 17:16:19 -0700
Subject: [PATCH 08/16] add comment about __timezone macro, use consistent API
 in spa_calc for args and returns

---
 pvlib/solarposition.py              |    2 +-
 pvlib/spa_c_files/setup.py          |    4 +
 pvlib/spa_c_files/spa_py.c          | 3250 ---------------------------
 pvlib/spa_c_files/spa_py.pyx        |    4 +-
 pvlib/spa_c_files/spa_py_example.py |    2 +-
 5 files changed, 8 insertions(+), 3254 deletions(-)
 delete mode 100644 pvlib/spa_c_files/spa_py.c

diff --git a/pvlib/solarposition.py b/pvlib/solarposition.py
index 21ab127127..b825e6d876 100644
--- a/pvlib/solarposition.py
+++ b/pvlib/solarposition.py
@@ -194,7 +194,7 @@ def spa_c(time, latitude, longitude, pressure=101325, altitude=0,
                                 hour=date.hour,
                                 minute=date.minute,
                                 second=date.second,
-                                timezone=0,  # date uses utc time
+                                time_zone=0,  # date uses utc time
                                 latitude=latitude,
                                 longitude=longitude,
                                 elevation=altitude,
diff --git a/pvlib/spa_c_files/setup.py b/pvlib/spa_c_files/setup.py
index 24cdba582a..f02c15ce0a 100644
--- a/pvlib/spa_c_files/setup.py
+++ b/pvlib/spa_c_files/setup.py
@@ -26,12 +26,16 @@
 REQ = request.Request(SPA_C_URL, DATA)
 with request.urlopen(REQ) as response:
     SPA_C = response.read()
+# replace timezone with time_zone to avoid a nameclash the function
+# __timezone which is defined by a MACRO in pyconfig.h as timezone
 SPA_C = SPA_C.replace(b'timezone', b'time_zone')
 with open(os.path.join(DIRNAME, 'spa.c'), 'wb') as f:
     f.write(SPA_C)
 # get spa.h
 with request.urlopen(SPA_H_URL) as response:
     SPA_H = response.read()
+# replace timezone with time_zone to avoid a nameclash the function
+# __timezone which is defined by a MACRO in pyconfig.h as timezone
 SPA_H = SPA_H.replace(b'timezone', b'time_zone')
 with open(os.path.join(DIRNAME, 'spa.h'), 'wb') as f:
     f.write(SPA_H)
diff --git a/pvlib/spa_c_files/spa_py.c b/pvlib/spa_c_files/spa_py.c
deleted file mode 100644
index a98491f934..0000000000
--- a/pvlib/spa_c_files/spa_py.c
+++ /dev/null
@@ -1,3250 +0,0 @@
-/* Generated by Cython 0.28.5 */
-
-/* BEGIN: Cython Metadata
-{
-    "distutils": {
-        "depends": [
-            "spa.h"
-        ],
-        "include_dirs": [
-            "."
-        ],
-        "name": "spa_py",
-        "sources": [
-            "spa_py.pyx",
-            "spa.c"
-        ]
-    },
-    "module_name": "spa_py"
-}
-END: Cython Metadata */
-
-#define PY_SSIZE_T_CLEAN
-#include "Python.h"
-#ifndef Py_PYTHON_H
-    #error Python headers needed to compile C extensions, please install development version of Python.
-#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
-    #error Cython requires Python 2.6+ or Python 3.3+.
-#else
-#define CYTHON_ABI "0_28_5"
-#define CYTHON_FUTURE_DIVISION 0
-#include <stddef.h>
-#ifndef offsetof
-  #define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
-#endif
-#if !defined(WIN32) && !defined(MS_WINDOWS)
-  #ifndef __stdcall
-    #define __stdcall
-  #endif
-  #ifndef __cdecl
-    #define __cdecl
-  #endif
-  #ifndef __fastcall
-    #define __fastcall
-  #endif
-#endif
-#ifndef DL_IMPORT
-  #define DL_IMPORT(t) t
-#endif
-#ifndef DL_EXPORT
-  #define DL_EXPORT(t) t
-#endif
-#define __PYX_COMMA ,
-#ifndef HAVE_LONG_LONG
-  #if PY_VERSION_HEX >= 0x02070000
-    #define HAVE_LONG_LONG
-  #endif
-#endif
-#ifndef PY_LONG_LONG
-  #define PY_LONG_LONG LONG_LONG
-#endif
-#ifndef Py_HUGE_VAL
-  #define Py_HUGE_VAL HUGE_VAL
-#endif
-#ifdef PYPY_VERSION
-  #define CYTHON_COMPILING_IN_PYPY 1
-  #define CYTHON_COMPILING_IN_PYSTON 0
-  #define CYTHON_COMPILING_IN_CPYTHON 0
-  #undef CYTHON_USE_TYPE_SLOTS
-  #define CYTHON_USE_TYPE_SLOTS 0
-  #undef CYTHON_USE_PYTYPE_LOOKUP
-  #define CYTHON_USE_PYTYPE_LOOKUP 0
-  #if PY_VERSION_HEX < 0x03050000
-    #undef CYTHON_USE_ASYNC_SLOTS
-    #define CYTHON_USE_ASYNC_SLOTS 0
-  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
-    #define CYTHON_USE_ASYNC_SLOTS 1
-  #endif
-  #undef CYTHON_USE_PYLIST_INTERNALS
-  #define CYTHON_USE_PYLIST_INTERNALS 0
-  #undef CYTHON_USE_UNICODE_INTERNALS
-  #define CYTHON_USE_UNICODE_INTERNALS 0
-  #undef CYTHON_USE_UNICODE_WRITER
-  #define CYTHON_USE_UNICODE_WRITER 0
-  #undef CYTHON_USE_PYLONG_INTERNALS
-  #define CYTHON_USE_PYLONG_INTERNALS 0
-  #undef CYTHON_AVOID_BORROWED_REFS
-  #define CYTHON_AVOID_BORROWED_REFS 1
-  #undef CYTHON_ASSUME_SAFE_MACROS
-  #define CYTHON_ASSUME_SAFE_MACROS 0
-  #undef CYTHON_UNPACK_METHODS
-  #define CYTHON_UNPACK_METHODS 0
-  #undef CYTHON_FAST_THREAD_STATE
-  #define CYTHON_FAST_THREAD_STATE 0
-  #undef CYTHON_FAST_PYCALL
-  #define CYTHON_FAST_PYCALL 0
-  #undef CYTHON_PEP489_MULTI_PHASE_INIT
-  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
-  #undef CYTHON_USE_TP_FINALIZE
-  #define CYTHON_USE_TP_FINALIZE 0
-#elif defined(PYSTON_VERSION)
-  #define CYTHON_COMPILING_IN_PYPY 0
-  #define CYTHON_COMPILING_IN_PYSTON 1
-  #define CYTHON_COMPILING_IN_CPYTHON 0
-  #ifndef CYTHON_USE_TYPE_SLOTS
-    #define CYTHON_USE_TYPE_SLOTS 1
-  #endif
-  #undef CYTHON_USE_PYTYPE_LOOKUP
-  #define CYTHON_USE_PYTYPE_LOOKUP 0
-  #undef CYTHON_USE_ASYNC_SLOTS
-  #define CYTHON_USE_ASYNC_SLOTS 0
-  #undef CYTHON_USE_PYLIST_INTERNALS
-  #define CYTHON_USE_PYLIST_INTERNALS 0
-  #ifndef CYTHON_USE_UNICODE_INTERNALS
-    #define CYTHON_USE_UNICODE_INTERNALS 1
-  #endif
-  #undef CYTHON_USE_UNICODE_WRITER
-  #define CYTHON_USE_UNICODE_WRITER 0
-  #undef CYTHON_USE_PYLONG_INTERNALS
-  #define CYTHON_USE_PYLONG_INTERNALS 0
-  #ifndef CYTHON_AVOID_BORROWED_REFS
-    #define CYTHON_AVOID_BORROWED_REFS 0
-  #endif
-  #ifndef CYTHON_ASSUME_SAFE_MACROS
-    #define CYTHON_ASSUME_SAFE_MACROS 1
-  #endif
-  #ifndef CYTHON_UNPACK_METHODS
-    #define CYTHON_UNPACK_METHODS 1
-  #endif
-  #undef CYTHON_FAST_THREAD_STATE
-  #define CYTHON_FAST_THREAD_STATE 0
-  #undef CYTHON_FAST_PYCALL
-  #define CYTHON_FAST_PYCALL 0
-  #undef CYTHON_PEP489_MULTI_PHASE_INIT
-  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
-  #undef CYTHON_USE_TP_FINALIZE
-  #define CYTHON_USE_TP_FINALIZE 0
-#else
-  #define CYTHON_COMPILING_IN_PYPY 0
-  #define CYTHON_COMPILING_IN_PYSTON 0
-  #define CYTHON_COMPILING_IN_CPYTHON 1
-  #ifndef CYTHON_USE_TYPE_SLOTS
-    #define CYTHON_USE_TYPE_SLOTS 1
-  #endif
-  #if PY_VERSION_HEX < 0x02070000
-    #undef CYTHON_USE_PYTYPE_LOOKUP
-    #define CYTHON_USE_PYTYPE_LOOKUP 0
-  #elif !defined(CYTHON_USE_PYTYPE_LOOKUP)
-    #define CYTHON_USE_PYTYPE_LOOKUP 1
-  #endif
-  #if PY_MAJOR_VERSION < 3
-    #undef CYTHON_USE_ASYNC_SLOTS
-    #define CYTHON_USE_ASYNC_SLOTS 0
-  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
-    #define CYTHON_USE_ASYNC_SLOTS 1
-  #endif
-  #if PY_VERSION_HEX < 0x02070000
-    #undef CYTHON_USE_PYLONG_INTERNALS
-    #define CYTHON_USE_PYLONG_INTERNALS 0
-  #elif !defined(CYTHON_USE_PYLONG_INTERNALS)
-    #define CYTHON_USE_PYLONG_INTERNALS 1
-  #endif
-  #ifndef CYTHON_USE_PYLIST_INTERNALS
-    #define CYTHON_USE_PYLIST_INTERNALS 1
-  #endif
-  #ifndef CYTHON_USE_UNICODE_INTERNALS
-    #define CYTHON_USE_UNICODE_INTERNALS 1
-  #endif
-  #if PY_VERSION_HEX < 0x030300F0
-    #undef CYTHON_USE_UNICODE_WRITER
-    #define CYTHON_USE_UNICODE_WRITER 0
-  #elif !defined(CYTHON_USE_UNICODE_WRITER)
-    #define CYTHON_USE_UNICODE_WRITER 1
-  #endif
-  #ifndef CYTHON_AVOID_BORROWED_REFS
-    #define CYTHON_AVOID_BORROWED_REFS 0
-  #endif
-  #ifndef CYTHON_ASSUME_SAFE_MACROS
-    #define CYTHON_ASSUME_SAFE_MACROS 1
-  #endif
-  #ifndef CYTHON_UNPACK_METHODS
-    #define CYTHON_UNPACK_METHODS 1
-  #endif
-  #ifndef CYTHON_FAST_THREAD_STATE
-    #define CYTHON_FAST_THREAD_STATE 1
-  #endif
-  #ifndef CYTHON_FAST_PYCALL
-    #define CYTHON_FAST_PYCALL 1
-  #endif
-  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
-    #define CYTHON_PEP489_MULTI_PHASE_INIT (0 && PY_VERSION_HEX >= 0x03050000)
-  #endif
-  #ifndef CYTHON_USE_TP_FINALIZE
-    #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1)
-  #endif
-#endif
-#if !defined(CYTHON_FAST_PYCCALL)
-#define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
-#endif
-#if CYTHON_USE_PYLONG_INTERNALS
-  #include "longintrepr.h"
-  #undef SHIFT
-  #undef BASE
-  #undef MASK
-#endif
-#ifndef __has_attribute
-  #define __has_attribute(x) 0
-#endif
-#ifndef __has_cpp_attribute
-  #define __has_cpp_attribute(x) 0
-#endif
-#ifndef CYTHON_RESTRICT
-  #if defined(__GNUC__)
-    #define CYTHON_RESTRICT __restrict__
-  #elif defined(_MSC_VER) && _MSC_VER >= 1400
-    #define CYTHON_RESTRICT __restrict
-  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-    #define CYTHON_RESTRICT restrict
-  #else
-    #define CYTHON_RESTRICT
-  #endif
-#endif
-#ifndef CYTHON_UNUSED
-# if defined(__GNUC__)
-#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
-#     define CYTHON_UNUSED __attribute__ ((__unused__))
-#   else
-#     define CYTHON_UNUSED
-#   endif
-# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
-#   define CYTHON_UNUSED __attribute__ ((__unused__))
-# else
-#   define CYTHON_UNUSED
-# endif
-#endif
-#ifndef CYTHON_MAYBE_UNUSED_VAR
-#  if defined(__cplusplus)
-     template<class T> void CYTHON_MAYBE_UNUSED_VAR( const T& ) { }
-#  else
-#    define CYTHON_MAYBE_UNUSED_VAR(x) (void)(x)
-#  endif
-#endif
-#ifndef CYTHON_NCP_UNUSED
-# if CYTHON_COMPILING_IN_CPYTHON
-#  define CYTHON_NCP_UNUSED
-# else
-#  define CYTHON_NCP_UNUSED CYTHON_UNUSED
-# endif
-#endif
-#define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None)
-#ifdef _MSC_VER
-    #ifndef _MSC_STDINT_H_
-        #if _MSC_VER < 1300
-           typedef unsigned char     uint8_t;
-           typedef unsigned int      uint32_t;
-        #else
-           typedef unsigned __int8   uint8_t;
-           typedef unsigned __int32  uint32_t;
-        #endif
-    #endif
-#else
-   #include <stdint.h>
-#endif
-#ifndef CYTHON_FALLTHROUGH
-  #if defined(__cplusplus) && __cplusplus >= 201103L
-    #if __has_cpp_attribute(fallthrough)
-      #define CYTHON_FALLTHROUGH [[fallthrough]]
-    #elif __has_cpp_attribute(clang::fallthrough)
-      #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
-    #elif __has_cpp_attribute(gnu::fallthrough)
-      #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
-    #endif
-  #endif
-  #ifndef CYTHON_FALLTHROUGH
-    #if __has_attribute(fallthrough)
-      #define CYTHON_FALLTHROUGH __attribute__((fallthrough))
-    #else
-      #define CYTHON_FALLTHROUGH
-    #endif
-  #endif
-  #if defined(__clang__ ) && defined(__apple_build_version__)
-    #if __apple_build_version__ < 7000000
-      #undef  CYTHON_FALLTHROUGH
-      #define CYTHON_FALLTHROUGH
-    #endif
-  #endif
-#endif
-
-#ifndef CYTHON_INLINE
-  #if defined(__clang__)
-    #define CYTHON_INLINE __inline__ __attribute__ ((__unused__))
-  #elif defined(__GNUC__)
-    #define CYTHON_INLINE __inline__
-  #elif defined(_MSC_VER)
-    #define CYTHON_INLINE __inline
-  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-    #define CYTHON_INLINE inline
-  #else
-    #define CYTHON_INLINE
-  #endif
-#endif
-
-#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag)
-  #define Py_OptimizeFlag 0
-#endif
-#define __PYX_BUILD_PY_SSIZE_T "n"
-#define CYTHON_FORMAT_SSIZE_T "z"
-#if PY_MAJOR_VERSION < 3
-  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
-  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
-          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
-  #define __Pyx_DefaultClassType PyClass_Type
-#else
-  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
-  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
-          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
-  #define __Pyx_DefaultClassType PyType_Type
-#endif
-#ifndef Py_TPFLAGS_CHECKTYPES
-  #define Py_TPFLAGS_CHECKTYPES 0
-#endif
-#ifndef Py_TPFLAGS_HAVE_INDEX
-  #define Py_TPFLAGS_HAVE_INDEX 0
-#endif
-#ifndef Py_TPFLAGS_HAVE_NEWBUFFER
-  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
-#endif
-#ifndef Py_TPFLAGS_HAVE_FINALIZE
-  #define Py_TPFLAGS_HAVE_FINALIZE 0
-#endif
-#if PY_VERSION_HEX <= 0x030700A3 || !defined(METH_FASTCALL)
-  #ifndef METH_FASTCALL
-     #define METH_FASTCALL 0x80
-  #endif
-  typedef PyObject *(*__Pyx_PyCFunctionFast) (PyObject *self, PyObject *const *args, Py_ssize_t nargs);
-  typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject *const *args,
-                                                          Py_ssize_t nargs, PyObject *kwnames);
-#else
-  #define __Pyx_PyCFunctionFast _PyCFunctionFast
-  #define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords
-#endif
-#if CYTHON_FAST_PYCCALL
-#define __Pyx_PyFastCFunction_Check(func)\
-    ((PyCFunction_Check(func) && (METH_FASTCALL == (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS)))))
-#else
-#define __Pyx_PyFastCFunction_Check(func) 0
-#endif
-#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
-  #define PyObject_Malloc(s)   PyMem_Malloc(s)
-  #define PyObject_Free(p)     PyMem_Free(p)
-  #define PyObject_Realloc(p)  PyMem_Realloc(p)
-#endif
-#if CYTHON_COMPILING_IN_PYSTON
-  #define __Pyx_PyCode_HasFreeVars(co)  PyCode_HasFreeVars(co)
-  #define __Pyx_PyFrame_SetLineNumber(frame, lineno) PyFrame_SetLineNumber(frame, lineno)
-#else
-  #define __Pyx_PyCode_HasFreeVars(co)  (PyCode_GetNumFree(co) > 0)
-  #define __Pyx_PyFrame_SetLineNumber(frame, lineno)  (frame)->f_lineno = (lineno)
-#endif
-#if !CYTHON_FAST_THREAD_STATE || PY_VERSION_HEX < 0x02070000
-  #define __Pyx_PyThreadState_Current PyThreadState_GET()
-#elif PY_VERSION_HEX >= 0x03060000
-  #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet()
-#elif PY_VERSION_HEX >= 0x03000000
-  #define __Pyx_PyThreadState_Current PyThreadState_GET()
-#else
-  #define __Pyx_PyThreadState_Current _PyThreadState_Current
-#endif
-#if PY_VERSION_HEX < 0x030700A2 && !defined(PyThread_tss_create) && !defined(Py_tss_NEEDS_INIT)
-#include "pythread.h"
-#define Py_tss_NEEDS_INIT 0
-typedef int Py_tss_t;
-static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
-  *key = PyThread_create_key();
-  return 0; // PyThread_create_key reports success always
-}
-static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
-  Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
-  *key = Py_tss_NEEDS_INIT;
-  return key;
-}
-static CYTHON_INLINE void PyThread_tss_free(Py_tss_t *key) {
-  PyObject_Free(key);
-}
-static CYTHON_INLINE int PyThread_tss_is_created(Py_tss_t *key) {
-  return *key != Py_tss_NEEDS_INIT;
-}
-static CYTHON_INLINE void PyThread_tss_delete(Py_tss_t *key) {
-  PyThread_delete_key(*key);
-  *key = Py_tss_NEEDS_INIT;
-}
-static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
-  return PyThread_set_key_value(*key, value);
-}
-static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
-  return PyThread_get_key_value(*key);
-}
-#endif // TSS (Thread Specific Storage) API
-#if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
-#define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
-#else
-#define __Pyx_PyDict_NewPresized(n)  PyDict_New()
-#endif
-#if PY_MAJOR_VERSION >= 3 || CYTHON_FUTURE_DIVISION
-  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
-  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
-#else
-  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
-  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
-#endif
-#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1 && CYTHON_USE_UNICODE_INTERNALS
-#define __Pyx_PyDict_GetItemStr(dict, name)  _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash)
-#else
-#define __Pyx_PyDict_GetItemStr(dict, name)  PyDict_GetItem(dict, name)
-#endif
-#if PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
-  #define CYTHON_PEP393_ENABLED 1
-  #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ?\
-                                              0 : _PyUnicode_Ready((PyObject *)(op)))
-  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
-  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
-  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   PyUnicode_MAX_CHAR_VALUE(u)
-  #define __Pyx_PyUnicode_KIND(u)         PyUnicode_KIND(u)
-  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
-  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
-  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
-  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
-#else
-  #define CYTHON_PEP393_ENABLED 0
-  #define PyUnicode_1BYTE_KIND  1
-  #define PyUnicode_2BYTE_KIND  2
-  #define PyUnicode_4BYTE_KIND  4
-  #define __Pyx_PyUnicode_READY(op)       (0)
-  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
-  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
-  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((sizeof(Py_UNICODE) == 2) ? 65535 : 1114111)
-  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
-  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
-  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
-  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  (((void)(k)), ((Py_UNICODE*)d)[i] = ch)
-  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_SIZE(u))
-#endif
-#if CYTHON_COMPILING_IN_PYPY
-  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
-  #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
-#else
-  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
-  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ?\
-      PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
-#endif
-#if CYTHON_COMPILING_IN_PYPY && !defined(PyUnicode_Contains)
-  #define PyUnicode_Contains(u, s)  PySequence_Contains(u, s)
-#endif
-#if CYTHON_COMPILING_IN_PYPY && !defined(PyByteArray_Check)
-  #define PyByteArray_Check(obj)  PyObject_TypeCheck(obj, &PyByteArray_Type)
-#endif
-#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Format)
-  #define PyObject_Format(obj, fmt)  PyObject_CallMethod(obj, "__format__", "O", fmt)
-#endif
-#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
-#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
-#if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
-#else
-  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
-#endif
-#if PY_MAJOR_VERSION < 3 && !defined(PyObject_ASCII)
-  #define PyObject_ASCII(o)            PyObject_Repr(o)
-#endif
-#if PY_MAJOR_VERSION >= 3
-  #define PyBaseString_Type            PyUnicode_Type
-  #define PyStringObject               PyUnicodeObject
-  #define PyString_Type                PyUnicode_Type
-  #define PyString_Check               PyUnicode_Check
-  #define PyString_CheckExact          PyUnicode_CheckExact
-  #define PyObject_Unicode             PyObject_Str
-#endif
-#if PY_MAJOR_VERSION >= 3
-  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
-  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
-#else
-  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
-  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
-#endif
-#ifndef PySet_CheckExact
-  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
-#endif
-#if CYTHON_ASSUME_SAFE_MACROS
-  #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
-#else
-  #define __Pyx_PySequence_SIZE(seq)  PySequence_Size(seq)
-#endif
-#if PY_MAJOR_VERSION >= 3
-  #define PyIntObject                  PyLongObject
-  #define PyInt_Type                   PyLong_Type
-  #define PyInt_Check(op)              PyLong_Check(op)
-  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
-  #define PyInt_FromString             PyLong_FromString
-  #define PyInt_FromUnicode            PyLong_FromUnicode
-  #define PyInt_FromLong               PyLong_FromLong
-  #define PyInt_FromSize_t             PyLong_FromSize_t
-  #define PyInt_FromSsize_t            PyLong_FromSsize_t
-  #define PyInt_AsLong                 PyLong_AsLong
-  #define PyInt_AS_LONG                PyLong_AS_LONG
-  #define PyInt_AsSsize_t              PyLong_AsSsize_t
-  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
-  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
-  #define PyNumber_Int                 PyNumber_Long
-#endif
-#if PY_MAJOR_VERSION >= 3
-  #define PyBoolObject                 PyLongObject
-#endif
-#if PY_MAJOR_VERSION >= 3 && CYTHON_COMPILING_IN_PYPY
-  #ifndef PyUnicode_InternFromString
-    #define PyUnicode_InternFromString(s) PyUnicode_FromString(s)
-  #endif
-#endif
-#if PY_VERSION_HEX < 0x030200A4
-  typedef long Py_hash_t;
-  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
-  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
-#else
-  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
-  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
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-#if PY_MAJOR_VERSION >= 3
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-  #define _USE_MATH_DEFINES
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-  return value;
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-#endif
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-#define __Pyx_truncl trunc
-#else
-#define __Pyx_truncl truncl
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-
-
-#define __PYX_ERR(f_index, lineno, Ln_error) \
-{ \
-  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
-}
-
-#ifndef __PYX_EXTERN_C
-  #ifdef __cplusplus
-    #define __PYX_EXTERN_C extern "C"
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-    #define __PYX_EXTERN_C extern
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-
-#define __PYX_HAVE__spa_py
-#define __PYX_HAVE_API__spa_py
-/* Early includes */
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-
-#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)
-#define CYTHON_WITHOUT_ASSERTIONS
-#endif
-
-typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding;
-                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
-
-#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
-#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
-#define __PYX_DEFAULT_STRING_ENCODING ""
-#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
-#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
-#define __Pyx_uchar_cast(c) ((unsigned char)c)
-#define __Pyx_long_cast(x) ((long)x)
-#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (\
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-    (sizeof(type) > sizeof(Py_ssize_t) &&\
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-    (sizeof(type) == sizeof(Py_ssize_t) &&\
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-    #define __Pyx_sst_abs(value) abs(value)
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-#elif defined (__GNUC__)
-    #define __Pyx_sst_abs(value) __builtin_llabs(value)
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-    #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
-#endif
-static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
-static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
-#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
-#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
-#define __Pyx_PyBytes_FromString        PyBytes_FromString
-#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
-static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
-#if PY_MAJOR_VERSION < 3
-    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
-    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
-#else
-    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
-    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
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-#define __Pyx_PyBytes_AsWritableString(s)     ((char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsWritableSString(s)    ((signed char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsWritableUString(s)    ((unsigned char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyObject_AsWritableString(s)    ((char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
-#define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
-#define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
-#define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
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-static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
-    const Py_UNICODE *u_end = u;
-    while (*u_end++) ;
-    return (size_t)(u_end - u - 1);
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-#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
-#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
-#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
-#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
-#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
-static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
-static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
-static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
-#define __Pyx_PySequence_Tuple(obj)\
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-static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
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-#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
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-#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
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-#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x))
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-static int __Pyx_sys_getdefaultencoding_not_ascii;
-static int __Pyx_init_sys_getdefaultencoding_params(void) {
-    PyObject* sys;
-    PyObject* default_encoding = NULL;
-    PyObject* ascii_chars_u = NULL;
-    PyObject* ascii_chars_b = NULL;
-    const char* default_encoding_c;
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-    if (!sys) goto bad;
-    default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL);
-    Py_DECREF(sys);
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-    if (!sys) goto bad;
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-static PyObject* __pyx_convert__to_py_spa_data(spa_data s);
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-/* CIntToPy.proto */
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-/* CIntFromPy.proto */
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-/* CheckBinaryVersion.proto */
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-/* InitStrings.proto */
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-        __pyx_empty_tuple, /*PyObject *freevars,*/
-        __pyx_empty_tuple, /*PyObject *cellvars,*/
-        py_srcfile,   /*PyObject *filename,*/
-        py_funcname,  /*PyObject *name,*/
-        py_line,
-        __pyx_empty_bytes  /*PyObject *lnotab*/
-    );
-    Py_DECREF(py_srcfile);
-    Py_DECREF(py_funcname);
-    return py_code;
-bad:
-    Py_XDECREF(py_srcfile);
-    Py_XDECREF(py_funcname);
-    return NULL;
-}
-static void __Pyx_AddTraceback(const char *funcname, int c_line,
-                               int py_line, const char *filename) {
-    PyCodeObject *py_code = 0;
-    PyFrameObject *py_frame = 0;
-    PyThreadState *tstate = __Pyx_PyThreadState_Current;
-    if (c_line) {
-        c_line = __Pyx_CLineForTraceback(tstate, c_line);
-    }
-    py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
-    if (!py_code) {
-        py_code = __Pyx_CreateCodeObjectForTraceback(
-            funcname, c_line, py_line, filename);
-        if (!py_code) goto bad;
-        __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
-    }
-    py_frame = PyFrame_New(
-        tstate,            /*PyThreadState *tstate,*/
-        py_code,           /*PyCodeObject *code,*/
-        __pyx_d,    /*PyObject *globals,*/
-        0                  /*PyObject *locals*/
-    );
-    if (!py_frame) goto bad;
-    __Pyx_PyFrame_SetLineNumber(py_frame, py_line);
-    PyTraceBack_Here(py_frame);
-bad:
-    Py_XDECREF(py_code);
-    Py_XDECREF(py_frame);
-}
-
-/* CIntFromPyVerify */
-#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
-    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
-#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
-    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
-#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
-    {\
-        func_type value = func_value;\
-        if (sizeof(target_type) < sizeof(func_type)) {\
-            if (unlikely(value != (func_type) (target_type) value)) {\
-                func_type zero = 0;\
-                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
-                    return (target_type) -1;\
-                if (is_unsigned && unlikely(value < zero))\
-                    goto raise_neg_overflow;\
-                else\
-                    goto raise_overflow;\
-            }\
-        }\
-        return (target_type) value;\
-    }
-
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
-    const int neg_one = (int) -1, const_zero = (int) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(int) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(int) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(int) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(int),
-                                     little, !is_unsigned);
-    }
-}
-
-static PyObject* __pyx_convert__to_py_spa_data(spa_data s) {
-  PyObject* res;
-  PyObject* member;
-  res = __Pyx_PyDict_NewPresized(27); if (unlikely(!res)) return NULL;
-  member = __Pyx_PyInt_From_int(s.year); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_year, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.month); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_month, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.day); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_day, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.hour); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_hour, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.minute); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_minute, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.second); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_second, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.delta_ut1); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_delta_ut1, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.delta_t); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_delta_t, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.time_zone); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_time_zone, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.longitude); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_longitude, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.latitude); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_latitude, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.elevation); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_elevation, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.pressure); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_pressure, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.temperature); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_temperature, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.slope); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_slope, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azm_rotation); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azm_rotation, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.atmos_refract); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_atmos_refract, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.function); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_function, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.e0); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_e0, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.e); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_e, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.zenith); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_zenith, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azimuth_astro); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azimuth_astro, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azimuth); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azimuth, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.incidence); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_incidence, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.suntransit); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_suntransit, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.sunrise); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_sunrise, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.sunset); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_sunset, member) < 0)) goto bad;
-  Py_DECREF(member);
-  return res;
-  bad:
-  Py_XDECREF(member);
-  Py_DECREF(res);
-  return NULL;
-}
-/* CIntFromPy */
-static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
-    const int neg_one = (int) -1, const_zero = (int) 0;
-    const int is_unsigned = neg_one > const_zero;
-#if PY_MAJOR_VERSION < 3
-    if (likely(PyInt_Check(x))) {
-        if (sizeof(int) < sizeof(long)) {
-            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
-        } else {
-            long val = PyInt_AS_LONG(x);
-            if (is_unsigned && unlikely(val < 0)) {
-                goto raise_neg_overflow;
-            }
-            return (int) val;
-        }
-    } else
-#endif
-    if (likely(PyLong_Check(x))) {
-        if (is_unsigned) {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (int) 0;
-                case  1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0])
-                case 2:
-                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) {
-                            return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) {
-                            return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) {
-                            return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
-                        }
-                    }
-                    break;
-            }
-#endif
-#if CYTHON_COMPILING_IN_CPYTHON
-            if (unlikely(Py_SIZE(x) < 0)) {
-                goto raise_neg_overflow;
-            }
-#else
-            {
-                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
-                if (unlikely(result < 0))
-                    return (int) -1;
-                if (unlikely(result == 1))
-                    goto raise_neg_overflow;
-            }
-#endif
-            if (sizeof(int) <= sizeof(unsigned long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
-#endif
-            }
-        } else {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (int) 0;
-                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0]))
-                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +digits[0])
-                case -2:
-                    if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case 2:
-                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                            return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case -3:
-                    if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                            return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case -4:
-                    if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
-                            return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-            }
-#endif
-            if (sizeof(int) <= sizeof(long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
-#endif
-            }
-        }
-        {
-#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
-            PyErr_SetString(PyExc_RuntimeError,
-                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
-#else
-            int val;
-            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
- #if PY_MAJOR_VERSION < 3
-            if (likely(v) && !PyLong_Check(v)) {
-                PyObject *tmp = v;
-                v = PyNumber_Long(tmp);
-                Py_DECREF(tmp);
-            }
- #endif
-            if (likely(v)) {
-                int one = 1; int is_little = (int)*(unsigned char *)&one;
-                unsigned char *bytes = (unsigned char *)&val;
-                int ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                              bytes, sizeof(val),
-                                              is_little, !is_unsigned);
-                Py_DECREF(v);
-                if (likely(!ret))
-                    return val;
-            }
-#endif
-            return (int) -1;
-        }
-    } else {
-        int val;
-        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
-        if (!tmp) return (int) -1;
-        val = __Pyx_PyInt_As_int(tmp);
-        Py_DECREF(tmp);
-        return val;
-    }
-raise_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "value too large to convert to int");
-    return (int) -1;
-raise_neg_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "can't convert negative value to int");
-    return (int) -1;
-}
-
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
-    const long neg_one = (long) -1, const_zero = (long) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(long) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(long) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(long) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(long),
-                                     little, !is_unsigned);
-    }
-}
-
-/* CIntFromPy */
-static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
-    const long neg_one = (long) -1, const_zero = (long) 0;
-    const int is_unsigned = neg_one > const_zero;
-#if PY_MAJOR_VERSION < 3
-    if (likely(PyInt_Check(x))) {
-        if (sizeof(long) < sizeof(long)) {
-            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
-        } else {
-            long val = PyInt_AS_LONG(x);
-            if (is_unsigned && unlikely(val < 0)) {
-                goto raise_neg_overflow;
-            }
-            return (long) val;
-        }
-    } else
-#endif
-    if (likely(PyLong_Check(x))) {
-        if (is_unsigned) {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (long) 0;
-                case  1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0])
-                case 2:
-                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) {
-                            return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) {
-                            return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) {
-                            return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
-                        }
-                    }
-                    break;
-            }
-#endif
-#if CYTHON_COMPILING_IN_CPYTHON
-            if (unlikely(Py_SIZE(x) < 0)) {
-                goto raise_neg_overflow;
-            }
-#else
-            {
-                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
-                if (unlikely(result < 0))
-                    return (long) -1;
-                if (unlikely(result == 1))
-                    goto raise_neg_overflow;
-            }
-#endif
-            if (sizeof(long) <= sizeof(unsigned long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
-#endif
-            }
-        } else {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (long) 0;
-                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0]))
-                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +digits[0])
-                case -2:
-                    if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case 2:
-                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                            return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case -3:
-                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                            return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case -4:
-                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
-                            return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-            }
-#endif
-            if (sizeof(long) <= sizeof(long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
-#endif
-            }
-        }
-        {
-#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
-            PyErr_SetString(PyExc_RuntimeError,
-                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
-#else
-            long val;
-            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
- #if PY_MAJOR_VERSION < 3
-            if (likely(v) && !PyLong_Check(v)) {
-                PyObject *tmp = v;
-                v = PyNumber_Long(tmp);
-                Py_DECREF(tmp);
-            }
- #endif
-            if (likely(v)) {
-                int one = 1; int is_little = (int)*(unsigned char *)&one;
-                unsigned char *bytes = (unsigned char *)&val;
-                int ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                              bytes, sizeof(val),
-                                              is_little, !is_unsigned);
-                Py_DECREF(v);
-                if (likely(!ret))
-                    return val;
-            }
-#endif
-            return (long) -1;
-        }
-    } else {
-        long val;
-        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
-        if (!tmp) return (long) -1;
-        val = __Pyx_PyInt_As_long(tmp);
-        Py_DECREF(tmp);
-        return val;
-    }
-raise_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "value too large to convert to long");
-    return (long) -1;
-raise_neg_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "can't convert negative value to long");
-    return (long) -1;
-}
-
-/* FastTypeChecks */
-#if CYTHON_COMPILING_IN_CPYTHON
-static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
-    while (a) {
-        a = a->tp_base;
-        if (a == b)
-            return 1;
-    }
-    return b == &PyBaseObject_Type;
-}
-static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
-    PyObject *mro;
-    if (a == b) return 1;
-    mro = a->tp_mro;
-    if (likely(mro)) {
-        Py_ssize_t i, n;
-        n = PyTuple_GET_SIZE(mro);
-        for (i = 0; i < n; i++) {
-            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
-                return 1;
-        }
-        return 0;
-    }
-    return __Pyx_InBases(a, b);
-}
-#if PY_MAJOR_VERSION == 2
-static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
-    PyObject *exception, *value, *tb;
-    int res;
-    __Pyx_PyThreadState_declare
-    __Pyx_PyThreadState_assign
-    __Pyx_ErrFetch(&exception, &value, &tb);
-    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
-    if (unlikely(res == -1)) {
-        PyErr_WriteUnraisable(err);
-        res = 0;
-    }
-    if (!res) {
-        res = PyObject_IsSubclass(err, exc_type2);
-        if (unlikely(res == -1)) {
-            PyErr_WriteUnraisable(err);
-            res = 0;
-        }
-    }
-    __Pyx_ErrRestore(exception, value, tb);
-    return res;
-}
-#else
-static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
-    int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0;
-    if (!res) {
-        res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
-    }
-    return res;
-}
-#endif
-static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    assert(PyExceptionClass_Check(exc_type));
-    n = PyTuple_GET_SIZE(tuple);
-#if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
-    }
-#endif
-    for (i=0; i<n; i++) {
-        PyObject *t = PyTuple_GET_ITEM(tuple, i);
-        #if PY_MAJOR_VERSION < 3
-        if (likely(exc_type == t)) return 1;
-        #endif
-        if (likely(PyExceptionClass_Check(t))) {
-            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
-        } else {
-        }
-    }
-    return 0;
-}
-static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
-    if (likely(err == exc_type)) return 1;
-    if (likely(PyExceptionClass_Check(err))) {
-        if (likely(PyExceptionClass_Check(exc_type))) {
-            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
-        } else if (likely(PyTuple_Check(exc_type))) {
-            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
-        } else {
-        }
-    }
-    return PyErr_GivenExceptionMatches(err, exc_type);
-}
-static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
-    assert(PyExceptionClass_Check(exc_type1));
-    assert(PyExceptionClass_Check(exc_type2));
-    if (likely(err == exc_type1 || err == exc_type2)) return 1;
-    if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
-    }
-    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
-}
-#endif
-
-/* CheckBinaryVersion */
-static int __Pyx_check_binary_version(void) {
-    char ctversion[4], rtversion[4];
-    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
-    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
-    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
-        char message[200];
-        PyOS_snprintf(message, sizeof(message),
-                      "compiletime version %s of module '%.100s' "
-                      "does not match runtime version %s",
-                      ctversion, __Pyx_MODULE_NAME, rtversion);
-        return PyErr_WarnEx(NULL, message, 1);
-    }
-    return 0;
-}
-
-/* InitStrings */
-static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
-    while (t->p) {
-        #if PY_MAJOR_VERSION < 3
-        if (t->is_unicode) {
-            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
-        } else if (t->intern) {
-            *t->p = PyString_InternFromString(t->s);
-        } else {
-            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
-        }
-        #else
-        if (t->is_unicode | t->is_str) {
-            if (t->intern) {
-                *t->p = PyUnicode_InternFromString(t->s);
-            } else if (t->encoding) {
-                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
-            } else {
-                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
-            }
-        } else {
-            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
-        }
-        #endif
-        if (!*t->p)
-            return -1;
-        if (PyObject_Hash(*t->p) == -1)
-            return -1;
-        ++t;
-    }
-    return 0;
-}
-
-static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
-    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
-}
-static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
-    Py_ssize_t ignore;
-    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
-}
-#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
-#if !CYTHON_PEP393_ENABLED
-static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
-    char* defenc_c;
-    PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
-    if (!defenc) return NULL;
-    defenc_c = PyBytes_AS_STRING(defenc);
-#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-    {
-        char* end = defenc_c + PyBytes_GET_SIZE(defenc);
-        char* c;
-        for (c = defenc_c; c < end; c++) {
-            if ((unsigned char) (*c) >= 128) {
-                PyUnicode_AsASCIIString(o);
-                return NULL;
-            }
-        }
-    }
-#endif
-    *length = PyBytes_GET_SIZE(defenc);
-    return defenc_c;
-}
-#else
-static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
-    if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL;
-#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-    if (likely(PyUnicode_IS_ASCII(o))) {
-        *length = PyUnicode_GET_LENGTH(o);
-        return PyUnicode_AsUTF8(o);
-    } else {
-        PyUnicode_AsASCIIString(o);
-        return NULL;
-    }
-#else
-    return PyUnicode_AsUTF8AndSize(o, length);
-#endif
-}
-#endif
-#endif
-static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
-#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
-    if (
-#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-            __Pyx_sys_getdefaultencoding_not_ascii &&
-#endif
-            PyUnicode_Check(o)) {
-        return __Pyx_PyUnicode_AsStringAndSize(o, length);
-    } else
-#endif
-#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
-    if (PyByteArray_Check(o)) {
-        *length = PyByteArray_GET_SIZE(o);
-        return PyByteArray_AS_STRING(o);
-    } else
-#endif
-    {
-        char* result;
-        int r = PyBytes_AsStringAndSize(o, &result, length);
-        if (unlikely(r < 0)) {
-            return NULL;
-        } else {
-            return result;
-        }
-    }
-}
-static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
-   int is_true = x == Py_True;
-   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
-   else return PyObject_IsTrue(x);
-}
-static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
-#if PY_MAJOR_VERSION >= 3
-    if (PyLong_Check(result)) {
-        if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
-                "__int__ returned non-int (type %.200s).  "
-                "The ability to return an instance of a strict subclass of int "
-                "is deprecated, and may be removed in a future version of Python.",
-                Py_TYPE(result)->tp_name)) {
-            Py_DECREF(result);
-            return NULL;
-        }
-        return result;
-    }
-#endif
-    PyErr_Format(PyExc_TypeError,
-                 "__%.4s__ returned non-%.4s (type %.200s)",
-                 type_name, type_name, Py_TYPE(result)->tp_name);
-    Py_DECREF(result);
-    return NULL;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
-#if CYTHON_USE_TYPE_SLOTS
-  PyNumberMethods *m;
-#endif
-  const char *name = NULL;
-  PyObject *res = NULL;
-#if PY_MAJOR_VERSION < 3
-  if (likely(PyInt_Check(x) || PyLong_Check(x)))
-#else
-  if (likely(PyLong_Check(x)))
-#endif
-    return __Pyx_NewRef(x);
-#if CYTHON_USE_TYPE_SLOTS
-  m = Py_TYPE(x)->tp_as_number;
-  #if PY_MAJOR_VERSION < 3
-  if (m && m->nb_int) {
-    name = "int";
-    res = m->nb_int(x);
-  }
-  else if (m && m->nb_long) {
-    name = "long";
-    res = m->nb_long(x);
-  }
-  #else
-  if (likely(m && m->nb_int)) {
-    name = "int";
-    res = m->nb_int(x);
-  }
-  #endif
-#else
-  if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) {
-    res = PyNumber_Int(x);
-  }
-#endif
-  if (likely(res)) {
-#if PY_MAJOR_VERSION < 3
-    if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) {
-#else
-    if (unlikely(!PyLong_CheckExact(res))) {
-#endif
-        return __Pyx_PyNumber_IntOrLongWrongResultType(res, name);
-    }
-  }
-  else if (!PyErr_Occurred()) {
-    PyErr_SetString(PyExc_TypeError,
-                    "an integer is required");
-  }
-  return res;
-}
-static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
-  Py_ssize_t ival;
-  PyObject *x;
-#if PY_MAJOR_VERSION < 3
-  if (likely(PyInt_CheckExact(b))) {
-    if (sizeof(Py_ssize_t) >= sizeof(long))
-        return PyInt_AS_LONG(b);
-    else
-        return PyInt_AsSsize_t(x);
-  }
-#endif
-  if (likely(PyLong_CheckExact(b))) {
-    #if CYTHON_USE_PYLONG_INTERNALS
-    const digit* digits = ((PyLongObject*)b)->ob_digit;
-    const Py_ssize_t size = Py_SIZE(b);
-    if (likely(__Pyx_sst_abs(size) <= 1)) {
-        ival = likely(size) ? digits[0] : 0;
-        if (size == -1) ival = -ival;
-        return ival;
-    } else {
-      switch (size) {
-         case 2:
-           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
-             return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case -2:
-           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
-             return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case 3:
-           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
-             return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case -3:
-           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
-             return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case 4:
-           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
-             return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case -4:
-           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
-             return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-      }
-    }
-    #endif
-    return PyLong_AsSsize_t(b);
-  }
-  x = PyNumber_Index(b);
-  if (!x) return -1;
-  ival = PyInt_AsSsize_t(x);
-  Py_DECREF(x);
-  return ival;
-}
-static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
-  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
-}
-static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
-    return PyInt_FromSize_t(ival);
-}
-
-
-#endif /* Py_PYTHON_H */
diff --git a/pvlib/spa_c_files/spa_py.pyx b/pvlib/spa_c_files/spa_py.pyx
index 971fd2edc0..10b89eaaea 100644
--- a/pvlib/spa_c_files/spa_py.pyx
+++ b/pvlib/spa_c_files/spa_py.pyx
@@ -1,6 +1,6 @@
 cimport cspa_py
 
-def spa_calc(year, month, day, hour, minute, second, timezone, latitude,
+def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
         longitude, elevation, pressure, temperature, delta_t,
         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
 
@@ -12,7 +12,7 @@ def spa_calc(year, month, day, hour, minute, second, timezone, latitude,
     spa.hour = hour
     spa.minute = minute
     spa.second = second
-    spa.time_zone = timezone
+    spa.time_zone = time_zone
     spa.delta_ut1 = delta_ut1
     spa.delta_t = delta_t
     spa.longitude = longitude
diff --git a/pvlib/spa_c_files/spa_py_example.py b/pvlib/spa_c_files/spa_py_example.py
index 7fc22b2745..4b3cf3bc9d 100644
--- a/pvlib/spa_c_files/spa_py_example.py
+++ b/pvlib/spa_c_files/spa_py_example.py
@@ -35,7 +35,7 @@
 def spa_calc_example(test=True):
     result = spa_calc(
         year=2004, month=10, day=17, hour=12, minute=30, second=30,
-        timezone=-7, longitude=-105.1786, latitude=39.742476,
+        time_zone=-7, longitude=-105.1786, latitude=39.742476,
         elevation=1830.14, pressure=820, temperature=11, delta_t=67
     )
     if test:

From 78e4067cccb2f9effa12be3764ba54424476f675 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 17:24:51 -0700
Subject: [PATCH 09/16] oops accidently deleted spa_py.c

---
 pvlib/spa_c_files/spa_py.c | 3247 ++++++++++++++++++++++++++++++++++++
 1 file changed, 3247 insertions(+)
 create mode 100644 pvlib/spa_c_files/spa_py.c

diff --git a/pvlib/spa_c_files/spa_py.c b/pvlib/spa_c_files/spa_py.c
new file mode 100644
index 0000000000..378c34c14a
--- /dev/null
+++ b/pvlib/spa_c_files/spa_py.c
@@ -0,0 +1,3247 @@
+/* Generated by Cython 0.28.5 */
+
+/* BEGIN: Cython Metadata
+{
+    "distutils": {
+        "depends": [
+            "spa.h"
+        ],
+        "include_dirs": [
+            "."
+        ],
+        "name": "spa_py",
+        "sources": [
+            "spa_py.pyx",
+            "spa.c"
+        ]
+    },
+    "module_name": "spa_py"
+}
+END: Cython Metadata */
+
+#define PY_SSIZE_T_CLEAN
+#include "Python.h"
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+    #error Python headers needed to compile C extensions, please install development version of Python.
+#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
+    #error Cython requires Python 2.6+ or Python 3.3+.
+#else
+#define CYTHON_ABI "0_28_5"
+#define CYTHON_FUTURE_DIVISION 0
+#include <stddef.h>
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+    #define __stdcall
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+    #define __cdecl
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+    #define __fastcall
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+#ifndef HAVE_LONG_LONG
+  #if PY_VERSION_HEX >= 0x02070000
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+  #define CYTHON_USE_TP_FINALIZE 0
+#elif defined(PYSTON_VERSION)
+  #define CYTHON_COMPILING_IN_PYPY 0
+  #define CYTHON_COMPILING_IN_PYSTON 1
+  #define CYTHON_COMPILING_IN_CPYTHON 0
+  #ifndef CYTHON_USE_TYPE_SLOTS
+    #define CYTHON_USE_TYPE_SLOTS 1
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+  #undef CYTHON_USE_ASYNC_SLOTS
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+  #undef CYTHON_USE_PYLIST_INTERNALS
+  #define CYTHON_USE_PYLIST_INTERNALS 0
+  #ifndef CYTHON_USE_UNICODE_INTERNALS
+    #define CYTHON_USE_UNICODE_INTERNALS 1
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+  #define CYTHON_FAST_THREAD_STATE 0
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+  #undef CYTHON_PEP489_MULTI_PHASE_INIT
+  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
+  #undef CYTHON_USE_TP_FINALIZE
+  #define CYTHON_USE_TP_FINALIZE 0
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+    #define CYTHON_USE_ASYNC_SLOTS 0
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+    #define CYTHON_USE_ASYNC_SLOTS 1
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+    #undef CYTHON_USE_PYLONG_INTERNALS
+    #define CYTHON_USE_PYLONG_INTERNALS 0
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+    #define CYTHON_USE_PYLIST_INTERNALS 1
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+    #define CYTHON_USE_UNICODE_WRITER 0
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+    #define CYTHON_USE_UNICODE_WRITER 1
+  #endif
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+    #define CYTHON_AVOID_BORROWED_REFS 0
+  #endif
+  #ifndef CYTHON_ASSUME_SAFE_MACROS
+    #define CYTHON_ASSUME_SAFE_MACROS 1
+  #endif
+  #ifndef CYTHON_UNPACK_METHODS
+    #define CYTHON_UNPACK_METHODS 1
+  #endif
+  #ifndef CYTHON_FAST_THREAD_STATE
+    #define CYTHON_FAST_THREAD_STATE 1
+  #endif
+  #ifndef CYTHON_FAST_PYCALL
+    #define CYTHON_FAST_PYCALL 1
+  #endif
+  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
+    #define CYTHON_PEP489_MULTI_PHASE_INIT (0 && PY_VERSION_HEX >= 0x03050000)
+  #endif
+  #ifndef CYTHON_USE_TP_FINALIZE
+    #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1)
+  #endif
+#endif
+#if !defined(CYTHON_FAST_PYCCALL)
+#define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
+#endif
+#if CYTHON_USE_PYLONG_INTERNALS
+  #include "longintrepr.h"
+  #undef SHIFT
+  #undef BASE
+  #undef MASK
+#endif
+#ifndef __has_attribute
+  #define __has_attribute(x) 0
+#endif
+#ifndef __has_cpp_attribute
+  #define __has_cpp_attribute(x) 0
+#endif
+#ifndef CYTHON_RESTRICT
+  #if defined(__GNUC__)
+    #define CYTHON_RESTRICT __restrict__
+  #elif defined(_MSC_VER) && _MSC_VER >= 1400
+    #define CYTHON_RESTRICT __restrict
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_RESTRICT restrict
+  #else
+    #define CYTHON_RESTRICT
+  #endif
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+# if defined(__GNUC__)
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#   else
+#     define CYTHON_UNUSED
+#   endif
+# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
+#   define CYTHON_UNUSED __attribute__ ((__unused__))
+# else
+#   define CYTHON_UNUSED
+# endif
+#endif
+#ifndef CYTHON_MAYBE_UNUSED_VAR
+#  if defined(__cplusplus)
+     template<class T> void CYTHON_MAYBE_UNUSED_VAR( const T& ) { }
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+#    define CYTHON_MAYBE_UNUSED_VAR(x) (void)(x)
+#  endif
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+#ifndef CYTHON_NCP_UNUSED
+# if CYTHON_COMPILING_IN_CPYTHON
+#  define CYTHON_NCP_UNUSED
+# else
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+    #ifndef _MSC_STDINT_H_
+        #if _MSC_VER < 1300
+           typedef unsigned char     uint8_t;
+           typedef unsigned int      uint32_t;
+        #else
+           typedef unsigned __int8   uint8_t;
+           typedef unsigned __int32  uint32_t;
+        #endif
+    #endif
+#else
+   #include <stdint.h>
+#endif
+#ifndef CYTHON_FALLTHROUGH
+  #if defined(__cplusplus) && __cplusplus >= 201103L
+    #if __has_cpp_attribute(fallthrough)
+      #define CYTHON_FALLTHROUGH [[fallthrough]]
+    #elif __has_cpp_attribute(clang::fallthrough)
+      #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
+    #elif __has_cpp_attribute(gnu::fallthrough)
+      #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
+    #endif
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+  #ifndef CYTHON_FALLTHROUGH
+    #if __has_attribute(fallthrough)
+      #define CYTHON_FALLTHROUGH __attribute__((fallthrough))
+    #else
+      #define CYTHON_FALLTHROUGH
+    #endif
+  #endif
+  #if defined(__clang__ ) && defined(__apple_build_version__)
+    #if __apple_build_version__ < 7000000
+      #undef  CYTHON_FALLTHROUGH
+      #define CYTHON_FALLTHROUGH
+    #endif
+  #endif
+#endif
+
+#ifndef CYTHON_INLINE
+  #if defined(__clang__)
+    #define CYTHON_INLINE __inline__ __attribute__ ((__unused__))
+  #elif defined(__GNUC__)
+    #define CYTHON_INLINE __inline__
+  #elif defined(_MSC_VER)
+    #define CYTHON_INLINE __inline
+  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define CYTHON_INLINE inline
+  #else
+    #define CYTHON_INLINE
+  #endif
+#endif
+
+#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag)
+  #define Py_OptimizeFlag 0
+#endif
+#define __PYX_BUILD_PY_SSIZE_T "n"
+#define CYTHON_FORMAT_SSIZE_T "z"
+#if PY_MAJOR_VERSION < 3
+  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyClass_Type
+#else
+  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
+  #define __Pyx_PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
+          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
+  #define __Pyx_DefaultClassType PyType_Type
+#endif
+#ifndef Py_TPFLAGS_CHECKTYPES
+  #define Py_TPFLAGS_CHECKTYPES 0
+#endif
+#ifndef Py_TPFLAGS_HAVE_INDEX
+  #define Py_TPFLAGS_HAVE_INDEX 0
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+  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
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+  #define Py_TPFLAGS_HAVE_FINALIZE 0
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+  typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject *const *args,
+                                                          Py_ssize_t nargs, PyObject *kwnames);
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+    ((PyCFunction_Check(func) && (METH_FASTCALL == (PyCFunction_GET_FLAGS(func) & ~(METH_CLASS | METH_STATIC | METH_COEXIST | METH_KEYWORDS)))))
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+  #define __Pyx_PyCode_HasFreeVars(co)  PyCode_HasFreeVars(co)
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+  #define __Pyx_PyThreadState_Current PyThreadState_GET()
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+}
+static CYTHON_INLINE int PyThread_tss_is_created(Py_tss_t *key) {
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+}
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+}
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+}
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+  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
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+  #define __Pyx_PyUnicode_READY(op)       (0)
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+  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
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+  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
+  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ?\
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+#if CYTHON_COMPILING_IN_PYPY && !defined(PyUnicode_Contains)
+  #define PyUnicode_Contains(u, s)  PySequence_Contains(u, s)
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+#if CYTHON_COMPILING_IN_PYPY && !defined(PyByteArray_Check)
+  #define PyByteArray_Check(obj)  PyObject_TypeCheck(obj, &PyByteArray_Type)
+#endif
+#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Format)
+  #define PyObject_Format(obj, fmt)  PyObject_CallMethod(obj, "__format__", "O", fmt)
+#endif
+#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
+#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None)) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
+#else
+  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
+#endif
+#if PY_MAJOR_VERSION < 3 && !defined(PyObject_ASCII)
+  #define PyObject_ASCII(o)            PyObject_Repr(o)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBaseString_Type            PyUnicode_Type
+  #define PyStringObject               PyUnicodeObject
+  #define PyString_Type                PyUnicode_Type
+  #define PyString_Check               PyUnicode_Check
+  #define PyString_CheckExact          PyUnicode_CheckExact
+  #define PyObject_Unicode             PyObject_Str
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
+  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
+#else
+  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
+  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
+#endif
+#ifndef PySet_CheckExact
+  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#endif
+#if CYTHON_ASSUME_SAFE_MACROS
+  #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
+#else
+  #define __Pyx_PySequence_SIZE(seq)  PySequence_Size(seq)
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyIntObject                  PyLongObject
+  #define PyInt_Type                   PyLong_Type
+  #define PyInt_Check(op)              PyLong_Check(op)
+  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
+  #define PyInt_FromString             PyLong_FromString
+  #define PyInt_FromUnicode            PyLong_FromUnicode
+  #define PyInt_FromLong               PyLong_FromLong
+  #define PyInt_FromSize_t             PyLong_FromSize_t
+  #define PyInt_FromSsize_t            PyLong_FromSsize_t
+  #define PyInt_AsLong                 PyLong_AsLong
+  #define PyInt_AS_LONG                PyLong_AS_LONG
+  #define PyInt_AsSsize_t              PyLong_AsSsize_t
+  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
+  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
+  #define PyNumber_Int                 PyNumber_Long
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define PyBoolObject                 PyLongObject
+#endif
+#if PY_MAJOR_VERSION >= 3 && CYTHON_COMPILING_IN_PYPY
+  #ifndef PyUnicode_InternFromString
+    #define PyUnicode_InternFromString(s) PyUnicode_FromString(s)
+  #endif
+#endif
+#if PY_VERSION_HEX < 0x030200A4
+  typedef long Py_hash_t;
+  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
+#else
+  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
+  #define __Pyx_PyInt_AsHash_t   PyInt_AsSsize_t
+#endif
+#if PY_MAJOR_VERSION >= 3
+  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
+#else
+  #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
+#endif
+#if CYTHON_USE_ASYNC_SLOTS
+  #if PY_VERSION_HEX >= 0x030500B1
+    #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods
+    #define __Pyx_PyType_AsAsync(obj) (Py_TYPE(obj)->tp_as_async)
+  #else
+    #define __Pyx_PyType_AsAsync(obj) ((__Pyx_PyAsyncMethodsStruct*) (Py_TYPE(obj)->tp_reserved))
+  #endif
+#else
+  #define __Pyx_PyType_AsAsync(obj) NULL
+#endif
+#ifndef __Pyx_PyAsyncMethodsStruct
+    typedef struct {
+        unaryfunc am_await;
+        unaryfunc am_aiter;
+        unaryfunc am_anext;
+    } __Pyx_PyAsyncMethodsStruct;
+#endif
+
+#if defined(WIN32) || defined(MS_WINDOWS)
+  #define _USE_MATH_DEFINES
+#endif
+#include <math.h>
+#ifdef NAN
+#define __PYX_NAN() ((float) NAN)
+#else
+static CYTHON_INLINE float __PYX_NAN() {
+  float value;
+  memset(&value, 0xFF, sizeof(value));
+  return value;
+}
+#endif
+#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL)
+#define __Pyx_truncl trunc
+#else
+#define __Pyx_truncl truncl
+#endif
+
+
+#define __PYX_ERR(f_index, lineno, Ln_error) \
+{ \
+  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
+}
+
+#ifndef __PYX_EXTERN_C
+  #ifdef __cplusplus
+    #define __PYX_EXTERN_C extern "C"
+  #else
+    #define __PYX_EXTERN_C extern
+  #endif
+#endif
+
+#define __PYX_HAVE__spa_py
+#define __PYX_HAVE_API__spa_py
+/* Early includes */
+#include "spa.h"
+#ifdef _OPENMP
+#include <omp.h>
+#endif /* _OPENMP */
+
+#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)
+#define CYTHON_WITHOUT_ASSERTIONS
+#endif
+
+typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding;
+                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
+
+#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
+#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
+#define __PYX_DEFAULT_STRING_ENCODING ""
+#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
+#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#define __Pyx_uchar_cast(c) ((unsigned char)c)
+#define __Pyx_long_cast(x) ((long)x)
+#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (\
+    (sizeof(type) < sizeof(Py_ssize_t))  ||\
+    (sizeof(type) > sizeof(Py_ssize_t) &&\
+          likely(v < (type)PY_SSIZE_T_MAX ||\
+                 v == (type)PY_SSIZE_T_MAX)  &&\
+          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\
+                                v == (type)PY_SSIZE_T_MIN)))  ||\
+    (sizeof(type) == sizeof(Py_ssize_t) &&\
+          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\
+                               v == (type)PY_SSIZE_T_MAX)))  )
+#if defined (__cplusplus) && __cplusplus >= 201103L
+    #include <cstdlib>
+    #define __Pyx_sst_abs(value) std::abs(value)
+#elif SIZEOF_INT >= SIZEOF_SIZE_T
+    #define __Pyx_sst_abs(value) abs(value)
+#elif SIZEOF_LONG >= SIZEOF_SIZE_T
+    #define __Pyx_sst_abs(value) labs(value)
+#elif defined (_MSC_VER)
+    #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value))
+#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+    #define __Pyx_sst_abs(value) llabs(value)
+#elif defined (__GNUC__)
+    #define __Pyx_sst_abs(value) __builtin_llabs(value)
+#else
+    #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
+#endif
+static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
+static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
+#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
+#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
+#define __Pyx_PyBytes_FromString        PyBytes_FromString
+#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
+#if PY_MAJOR_VERSION < 3
+    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
+#else
+    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
+    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
+#endif
+#define __Pyx_PyBytes_AsWritableString(s)     ((char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsWritableSString(s)    ((signed char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsWritableUString(s)    ((unsigned char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
+#define __Pyx_PyObject_AsWritableString(s)    ((char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
+#define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
+#define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
+#define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
+#define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
+#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
+static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
+    const Py_UNICODE *u_end = u;
+    while (*u_end++) ;
+    return (size_t)(u_end - u - 1);
+}
+#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
+#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
+#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
+#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
+#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
+#define __Pyx_PySequence_Tuple(obj)\
+    (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj))
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
+#if CYTHON_ASSUME_SAFE_MACROS
+#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
+#else
+#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
+#endif
+#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
+#if PY_MAJOR_VERSION >= 3
+#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x))
+#else
+#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
+#endif
+#define __Pyx_PyNumber_Float(x) (PyFloat_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Float(x))
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+static int __Pyx_sys_getdefaultencoding_not_ascii;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    PyObject* ascii_chars_u = NULL;
+    PyObject* ascii_chars_b = NULL;
+    const char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    if (strcmp(default_encoding_c, "ascii") == 0) {
+        __Pyx_sys_getdefaultencoding_not_ascii = 0;
+    } else {
+        char ascii_chars[128];
+        int c;
+        for (c = 0; c < 128; c++) {
+            ascii_chars[c] = c;
+        }
+        __Pyx_sys_getdefaultencoding_not_ascii = 1;
+        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
+        if (!ascii_chars_u) goto bad;
+        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
+        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
+            PyErr_Format(
+                PyExc_ValueError,
+                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
+                default_encoding_c);
+            goto bad;
+        }
+        Py_DECREF(ascii_chars_u);
+        Py_DECREF(ascii_chars_b);
+    }
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    Py_XDECREF(ascii_chars_u);
+    Py_XDECREF(ascii_chars_b);
+    return -1;
+}
+#endif
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
+#else
+#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
+#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+static char* __PYX_DEFAULT_STRING_ENCODING;
+static int __Pyx_init_sys_getdefaultencoding_params(void) {
+    PyObject* sys;
+    PyObject* default_encoding = NULL;
+    char* default_encoding_c;
+    sys = PyImport_ImportModule("sys");
+    if (!sys) goto bad;
+    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
+    Py_DECREF(sys);
+    if (!default_encoding) goto bad;
+    default_encoding_c = PyBytes_AsString(default_encoding);
+    if (!default_encoding_c) goto bad;
+    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
+    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
+    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
+    Py_DECREF(default_encoding);
+    return 0;
+bad:
+    Py_XDECREF(default_encoding);
+    return -1;
+}
+#endif
+#endif
+
+
+/* Test for GCC > 2.95 */
+#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
+  #define likely(x)   __builtin_expect(!!(x), 1)
+  #define unlikely(x) __builtin_expect(!!(x), 0)
+#else /* !__GNUC__ or GCC < 2.95 */
+  #define likely(x)   (x)
+  #define unlikely(x) (x)
+#endif /* __GNUC__ */
+static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
+
+static PyObject *__pyx_m = NULL;
+static PyObject *__pyx_d;
+static PyObject *__pyx_b;
+static PyObject *__pyx_cython_runtime = NULL;
+static PyObject *__pyx_empty_tuple;
+static PyObject *__pyx_empty_bytes;
+static PyObject *__pyx_empty_unicode;
+static int __pyx_lineno;
+static int __pyx_clineno = 0;
+static const char * __pyx_cfilenm= __FILE__;
+static const char *__pyx_filename;
+
+
+static const char *__pyx_f[] = {
+  "spa_py.pyx",
+};
+
+/*--- Type declarations ---*/
+
+/* --- Runtime support code (head) --- */
+/* Refnanny.proto */
+#ifndef CYTHON_REFNANNY
+  #define CYTHON_REFNANNY 0
+#endif
+#if CYTHON_REFNANNY
+  typedef struct {
+    void (*INCREF)(void*, PyObject*, int);
+    void (*DECREF)(void*, PyObject*, int);
+    void (*GOTREF)(void*, PyObject*, int);
+    void (*GIVEREF)(void*, PyObject*, int);
+    void* (*SetupContext)(const char*, int, const char*);
+    void (*FinishContext)(void**);
+  } __Pyx_RefNannyAPIStruct;
+  static __Pyx_RefNannyAPIStruct *__Pyx_RefNanny = NULL;
+  static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname);
+  #define __Pyx_RefNannyDeclarations void *__pyx_refnanny = NULL;
+#ifdef WITH_THREAD
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
+          if (acquire_gil) {\
+              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__);\
+              PyGILState_Release(__pyx_gilstate_save);\
+          } else {\
+              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__);\
+          }
+#else
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
+          __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), __LINE__, __FILE__)
+#endif
+  #define __Pyx_RefNannyFinishContext()\
+          __Pyx_RefNanny->FinishContext(&__pyx_refnanny)
+  #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_DECREF(r)  __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GOTREF(r)  __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), __LINE__)
+  #define __Pyx_XINCREF(r)  do { if((r) != NULL) {__Pyx_INCREF(r); }} while(0)
+  #define __Pyx_XDECREF(r)  do { if((r) != NULL) {__Pyx_DECREF(r); }} while(0)
+  #define __Pyx_XGOTREF(r)  do { if((r) != NULL) {__Pyx_GOTREF(r); }} while(0)
+  #define __Pyx_XGIVEREF(r) do { if((r) != NULL) {__Pyx_GIVEREF(r);}} while(0)
+#else
+  #define __Pyx_RefNannyDeclarations
+  #define __Pyx_RefNannySetupContext(name, acquire_gil)
+  #define __Pyx_RefNannyFinishContext()
+  #define __Pyx_INCREF(r) Py_INCREF(r)
+  #define __Pyx_DECREF(r) Py_DECREF(r)
+  #define __Pyx_GOTREF(r)
+  #define __Pyx_GIVEREF(r)
+  #define __Pyx_XINCREF(r) Py_XINCREF(r)
+  #define __Pyx_XDECREF(r) Py_XDECREF(r)
+  #define __Pyx_XGOTREF(r)
+  #define __Pyx_XGIVEREF(r)
+#endif
+#define __Pyx_XDECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; __Pyx_XDECREF(tmp);\
+    } while (0)
+#define __Pyx_DECREF_SET(r, v) do {\
+        PyObject *tmp = (PyObject *) r;\
+        r = v; __Pyx_DECREF(tmp);\
+    } while (0)
+#define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
+#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)
+
+/* RaiseArgTupleInvalid.proto */
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);
+
+/* RaiseDoubleKeywords.proto */
+static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);
+
+/* ParseKeywords.proto */
+static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],\
+    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,\
+    const char* function_name);
+
+/* PyObjectGetAttrStr.proto */
+#if CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name);
+#else
+#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
+#endif
+
+/* PyThreadStateGet.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
+#define __Pyx_PyThreadState_assign  __pyx_tstate = __Pyx_PyThreadState_Current;
+#define __Pyx_PyErr_Occurred()  __pyx_tstate->curexc_type
+#else
+#define __Pyx_PyThreadState_declare
+#define __Pyx_PyThreadState_assign
+#define __Pyx_PyErr_Occurred()  PyErr_Occurred()
+#endif
+
+/* PyErrFetchRestore.proto */
+#if CYTHON_FAST_THREAD_STATE
+#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)    __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)    __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb)
+static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
+static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL))
+#else
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#endif
+#else
+#define __Pyx_PyErr_Clear() PyErr_Clear()
+#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
+#define __Pyx_ErrRestoreWithState(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchWithState(type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestoreInState(tstate, type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetchInState(tstate, type, value, tb)  PyErr_Fetch(type, value, tb)
+#define __Pyx_ErrRestore(type, value, tb)  PyErr_Restore(type, value, tb)
+#define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
+#endif
+
+/* CLineInTraceback.proto */
+#ifdef CYTHON_CLINE_IN_TRACEBACK
+#define __Pyx_CLineForTraceback(tstate, c_line)  (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0)
+#else
+static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line);
+#endif
+
+/* CodeObjectCache.proto */
+typedef struct {
+    PyCodeObject* code_object;
+    int code_line;
+} __Pyx_CodeObjectCacheEntry;
+struct __Pyx_CodeObjectCache {
+    int count;
+    int max_count;
+    __Pyx_CodeObjectCacheEntry* entries;
+};
+static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL};
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line);
+static PyCodeObject *__pyx_find_code_object(int code_line);
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
+
+/* AddTraceback.proto */
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
+
+static PyObject* __pyx_convert__to_py_spa_data(spa_data s);
+/* CIntFromPy.proto */
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
+
+/* CIntToPy.proto */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
+
+/* CIntFromPy.proto */
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);
+
+/* FastTypeChecks.proto */
+#if CYTHON_COMPILING_IN_CPYTHON
+#define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type)
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type);
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2);
+#else
+#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
+#define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type)
+#define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2))
+#endif
+#define __Pyx_PyException_Check(obj) __Pyx_TypeCheck(obj, PyExc_Exception)
+
+/* CheckBinaryVersion.proto */
+static int __Pyx_check_binary_version(void);
+
+/* InitStrings.proto */
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);
+
+
+/* Module declarations from 'cspa_py' */
+
+/* Module declarations from 'spa_py' */
+#define __Pyx_MODULE_NAME "spa_py"
+extern int __pyx_module_is_main_spa_py;
+int __pyx_module_is_main_spa_py = 0;
+
+/* Implementation of 'spa_py' */
+static const char __pyx_k_e[] = "e";
+static const char __pyx_k_e0[] = "e0";
+static const char __pyx_k_day[] = "day";
+static const char __pyx_k_err[] = "err";
+static const char __pyx_k_spa[] = "spa";
+static const char __pyx_k_hour[] = "hour";
+static const char __pyx_k_main[] = "__main__";
+static const char __pyx_k_test[] = "__test__";
+static const char __pyx_k_year[] = "year";
+static const char __pyx_k_month[] = "month";
+static const char __pyx_k_slope[] = "slope";
+static const char __pyx_k_minute[] = "minute";
+static const char __pyx_k_second[] = "second";
+static const char __pyx_k_spa_py[] = "spa_py";
+static const char __pyx_k_sunset[] = "sunset";
+static const char __pyx_k_zenith[] = "zenith";
+static const char __pyx_k_azimuth[] = "azimuth";
+static const char __pyx_k_delta_t[] = "delta_t";
+static const char __pyx_k_sunrise[] = "sunrise";
+static const char __pyx_k_function[] = "function";
+static const char __pyx_k_latitude[] = "latitude";
+static const char __pyx_k_pressure[] = "pressure";
+static const char __pyx_k_spa_calc[] = "spa_calc";
+static const char __pyx_k_delta_ut1[] = "delta_ut1";
+static const char __pyx_k_elevation[] = "elevation";
+static const char __pyx_k_incidence[] = "incidence";
+static const char __pyx_k_longitude[] = "longitude";
+static const char __pyx_k_time_zone[] = "time_zone";
+static const char __pyx_k_spa_py_pyx[] = "spa_py.pyx";
+static const char __pyx_k_suntransit[] = "suntransit";
+static const char __pyx_k_temperature[] = "temperature";
+static const char __pyx_k_azm_rotation[] = "azm_rotation";
+static const char __pyx_k_atmos_refract[] = "atmos_refract";
+static const char __pyx_k_azimuth_astro[] = "azimuth_astro";
+static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
+static PyObject *__pyx_n_s_atmos_refract;
+static PyObject *__pyx_n_s_azimuth;
+static PyObject *__pyx_n_s_azimuth_astro;
+static PyObject *__pyx_n_s_azm_rotation;
+static PyObject *__pyx_n_s_cline_in_traceback;
+static PyObject *__pyx_n_s_day;
+static PyObject *__pyx_n_s_delta_t;
+static PyObject *__pyx_n_s_delta_ut1;
+static PyObject *__pyx_n_s_e;
+static PyObject *__pyx_n_s_e0;
+static PyObject *__pyx_n_s_elevation;
+static PyObject *__pyx_n_s_err;
+static PyObject *__pyx_n_s_function;
+static PyObject *__pyx_n_s_hour;
+static PyObject *__pyx_n_s_incidence;
+static PyObject *__pyx_n_s_latitude;
+static PyObject *__pyx_n_s_longitude;
+static PyObject *__pyx_n_s_main;
+static PyObject *__pyx_n_s_minute;
+static PyObject *__pyx_n_s_month;
+static PyObject *__pyx_n_s_pressure;
+static PyObject *__pyx_n_s_second;
+static PyObject *__pyx_n_s_slope;
+static PyObject *__pyx_n_s_spa;
+static PyObject *__pyx_n_s_spa_calc;
+static PyObject *__pyx_n_s_spa_py;
+static PyObject *__pyx_kp_s_spa_py_pyx;
+static PyObject *__pyx_n_s_sunrise;
+static PyObject *__pyx_n_s_sunset;
+static PyObject *__pyx_n_s_suntransit;
+static PyObject *__pyx_n_s_temperature;
+static PyObject *__pyx_n_s_test;
+static PyObject *__pyx_n_s_time_zone;
+static PyObject *__pyx_n_s_year;
+static PyObject *__pyx_n_s_zenith;
+static PyObject *__pyx_pf_6spa_py_spa_calc(CYTHON_UNUSED PyObject *__pyx_self, PyObject *__pyx_v_year, PyObject *__pyx_v_month, PyObject *__pyx_v_day, PyObject *__pyx_v_hour, PyObject *__pyx_v_minute, PyObject *__pyx_v_second, PyObject *__pyx_v_time_zone, PyObject *__pyx_v_latitude, PyObject *__pyx_v_longitude, PyObject *__pyx_v_elevation, PyObject *__pyx_v_pressure, PyObject *__pyx_v_temperature, PyObject *__pyx_v_delta_t, PyObject *__pyx_v_delta_ut1, PyObject *__pyx_v_slope, PyObject *__pyx_v_azm_rotation, PyObject *__pyx_v_atmos_refract); /* proto */
+static PyObject *__pyx_float_30_0;
+static PyObject *__pyx_float_0_5667;
+static PyObject *__pyx_int_0;
+static PyObject *__pyx_int_neg_10;
+static PyObject *__pyx_tuple_;
+static PyObject *__pyx_codeobj__2;
+/* Late includes */
+
+/* "spa_py.pyx":3
+ * cimport cspa_py
+ * 
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ *         longitude, elevation, pressure, temperature, delta_t,
+ *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
+ */
+
+/* Python wrapper */
+static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_6spa_py_1spa_calc = {"spa_calc", (PyCFunction)__pyx_pw_6spa_py_1spa_calc, METH_VARARGS|METH_KEYWORDS, 0};
+static PyObject *__pyx_pw_6spa_py_1spa_calc(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+  PyObject *__pyx_v_year = 0;
+  PyObject *__pyx_v_month = 0;
+  PyObject *__pyx_v_day = 0;
+  PyObject *__pyx_v_hour = 0;
+  PyObject *__pyx_v_minute = 0;
+  PyObject *__pyx_v_second = 0;
+  PyObject *__pyx_v_time_zone = 0;
+  PyObject *__pyx_v_latitude = 0;
+  PyObject *__pyx_v_longitude = 0;
+  PyObject *__pyx_v_elevation = 0;
+  PyObject *__pyx_v_pressure = 0;
+  PyObject *__pyx_v_temperature = 0;
+  PyObject *__pyx_v_delta_t = 0;
+  PyObject *__pyx_v_delta_ut1 = 0;
+  PyObject *__pyx_v_slope = 0;
+  PyObject *__pyx_v_azm_rotation = 0;
+  PyObject *__pyx_v_atmos_refract = 0;
+  PyObject *__pyx_r = 0;
+  __Pyx_RefNannyDeclarations
+  __Pyx_RefNannySetupContext("spa_calc (wrapper)", 0);
+  {
+    static PyObject **__pyx_pyargnames[] = {&__pyx_n_s_year,&__pyx_n_s_month,&__pyx_n_s_day,&__pyx_n_s_hour,&__pyx_n_s_minute,&__pyx_n_s_second,&__pyx_n_s_time_zone,&__pyx_n_s_latitude,&__pyx_n_s_longitude,&__pyx_n_s_elevation,&__pyx_n_s_pressure,&__pyx_n_s_temperature,&__pyx_n_s_delta_t,&__pyx_n_s_delta_ut1,&__pyx_n_s_slope,&__pyx_n_s_azm_rotation,&__pyx_n_s_atmos_refract,0};
+    PyObject* values[17] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
+    values[13] = ((PyObject *)__pyx_int_0);
+    values[14] = ((PyObject *)__pyx_float_30_0);
+    values[15] = ((PyObject *)__pyx_int_neg_10);
+    values[16] = ((PyObject *)__pyx_float_0_5667);
+    if (unlikely(__pyx_kwds)) {
+      Py_ssize_t kw_args;
+      const Py_ssize_t pos_args = PyTuple_GET_SIZE(__pyx_args);
+      switch (pos_args) {
+        case 17: values[16] = PyTuple_GET_ITEM(__pyx_args, 16);
+        CYTHON_FALLTHROUGH;
+        case 16: values[15] = PyTuple_GET_ITEM(__pyx_args, 15);
+        CYTHON_FALLTHROUGH;
+        case 15: values[14] = PyTuple_GET_ITEM(__pyx_args, 14);
+        CYTHON_FALLTHROUGH;
+        case 14: values[13] = PyTuple_GET_ITEM(__pyx_args, 13);
+        CYTHON_FALLTHROUGH;
+        case 13: values[12] = PyTuple_GET_ITEM(__pyx_args, 12);
+        CYTHON_FALLTHROUGH;
+        case 12: values[11] = PyTuple_GET_ITEM(__pyx_args, 11);
+        CYTHON_FALLTHROUGH;
+        case 11: values[10] = PyTuple_GET_ITEM(__pyx_args, 10);
+        CYTHON_FALLTHROUGH;
+        case 10: values[9] = PyTuple_GET_ITEM(__pyx_args, 9);
+        CYTHON_FALLTHROUGH;
+        case  9: values[8] = PyTuple_GET_ITEM(__pyx_args, 8);
+        CYTHON_FALLTHROUGH;
+        case  8: values[7] = PyTuple_GET_ITEM(__pyx_args, 7);
+        CYTHON_FALLTHROUGH;
+        case  7: values[6] = PyTuple_GET_ITEM(__pyx_args, 6);
+        CYTHON_FALLTHROUGH;
+        case  6: values[5] = PyTuple_GET_ITEM(__pyx_args, 5);
+        CYTHON_FALLTHROUGH;
+        case  5: values[4] = PyTuple_GET_ITEM(__pyx_args, 4);
+        CYTHON_FALLTHROUGH;
+        case  4: values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
+        CYTHON_FALLTHROUGH;
+        case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
+        CYTHON_FALLTHROUGH;
+        case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+        CYTHON_FALLTHROUGH;
+        case  1: values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+        CYTHON_FALLTHROUGH;
+        case  0: break;
+        default: goto __pyx_L5_argtuple_error;
+      }
+      kw_args = PyDict_Size(__pyx_kwds);
+      switch (pos_args) {
+        case  0:
+        if (likely((values[0] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_year)) != 0)) kw_args--;
+        else goto __pyx_L5_argtuple_error;
+        CYTHON_FALLTHROUGH;
+        case  1:
+        if (likely((values[1] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_month)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 1); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  2:
+        if (likely((values[2] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_day)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 2); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  3:
+        if (likely((values[3] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_hour)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 3); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  4:
+        if (likely((values[4] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_minute)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 4); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  5:
+        if (likely((values[5] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_second)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 5); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  6:
+        if (likely((values[6] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_time_zone)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 6); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  7:
+        if (likely((values[7] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_latitude)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 7); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  8:
+        if (likely((values[8] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_longitude)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 8); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case  9:
+        if (likely((values[9] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_elevation)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 9); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case 10:
+        if (likely((values[10] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_pressure)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 10); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case 11:
+        if (likely((values[11] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_temperature)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 11); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case 12:
+        if (likely((values[12] = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_delta_t)) != 0)) kw_args--;
+        else {
+          __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, 12); __PYX_ERR(0, 3, __pyx_L3_error)
+        }
+        CYTHON_FALLTHROUGH;
+        case 13:
+        if (kw_args > 0) {
+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_delta_ut1);
+          if (value) { values[13] = value; kw_args--; }
+        }
+        CYTHON_FALLTHROUGH;
+        case 14:
+        if (kw_args > 0) {
+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_slope);
+          if (value) { values[14] = value; kw_args--; }
+        }
+        CYTHON_FALLTHROUGH;
+        case 15:
+        if (kw_args > 0) {
+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_azm_rotation);
+          if (value) { values[15] = value; kw_args--; }
+        }
+        CYTHON_FALLTHROUGH;
+        case 16:
+        if (kw_args > 0) {
+          PyObject* value = __Pyx_PyDict_GetItemStr(__pyx_kwds, __pyx_n_s_atmos_refract);
+          if (value) { values[16] = value; kw_args--; }
+        }
+      }
+      if (unlikely(kw_args > 0)) {
+        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_pyargnames, 0, values, pos_args, "spa_calc") < 0)) __PYX_ERR(0, 3, __pyx_L3_error)
+      }
+    } else {
+      switch (PyTuple_GET_SIZE(__pyx_args)) {
+        case 17: values[16] = PyTuple_GET_ITEM(__pyx_args, 16);
+        CYTHON_FALLTHROUGH;
+        case 16: values[15] = PyTuple_GET_ITEM(__pyx_args, 15);
+        CYTHON_FALLTHROUGH;
+        case 15: values[14] = PyTuple_GET_ITEM(__pyx_args, 14);
+        CYTHON_FALLTHROUGH;
+        case 14: values[13] = PyTuple_GET_ITEM(__pyx_args, 13);
+        CYTHON_FALLTHROUGH;
+        case 13: values[12] = PyTuple_GET_ITEM(__pyx_args, 12);
+        values[11] = PyTuple_GET_ITEM(__pyx_args, 11);
+        values[10] = PyTuple_GET_ITEM(__pyx_args, 10);
+        values[9] = PyTuple_GET_ITEM(__pyx_args, 9);
+        values[8] = PyTuple_GET_ITEM(__pyx_args, 8);
+        values[7] = PyTuple_GET_ITEM(__pyx_args, 7);
+        values[6] = PyTuple_GET_ITEM(__pyx_args, 6);
+        values[5] = PyTuple_GET_ITEM(__pyx_args, 5);
+        values[4] = PyTuple_GET_ITEM(__pyx_args, 4);
+        values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
+        values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
+        values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
+        values[0] = PyTuple_GET_ITEM(__pyx_args, 0);
+        break;
+        default: goto __pyx_L5_argtuple_error;
+      }
+    }
+    __pyx_v_year = values[0];
+    __pyx_v_month = values[1];
+    __pyx_v_day = values[2];
+    __pyx_v_hour = values[3];
+    __pyx_v_minute = values[4];
+    __pyx_v_second = values[5];
+    __pyx_v_time_zone = values[6];
+    __pyx_v_latitude = values[7];
+    __pyx_v_longitude = values[8];
+    __pyx_v_elevation = values[9];
+    __pyx_v_pressure = values[10];
+    __pyx_v_temperature = values[11];
+    __pyx_v_delta_t = values[12];
+    __pyx_v_delta_ut1 = values[13];
+    __pyx_v_slope = values[14];
+    __pyx_v_azm_rotation = values[15];
+    __pyx_v_atmos_refract = values[16];
+  }
+  goto __pyx_L4_argument_unpacking_done;
+  __pyx_L5_argtuple_error:;
+  __Pyx_RaiseArgtupleInvalid("spa_calc", 0, 13, 17, PyTuple_GET_SIZE(__pyx_args)); __PYX_ERR(0, 3, __pyx_L3_error)
+  __pyx_L3_error:;
+  __Pyx_AddTraceback("spa_py.spa_calc", __pyx_clineno, __pyx_lineno, __pyx_filename);
+  __Pyx_RefNannyFinishContext();
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+}
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+}
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+}
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+static int __Pyx_modinit_variable_import_code(void) {
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+}
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+}
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+#if PY_MAJOR_VERSION < 3
+#ifdef CYTHON_NO_PYINIT_EXPORT
+#define __Pyx_PyMODINIT_FUNC void
+#else
+#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
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+#else
+#ifdef CYTHON_NO_PYINIT_EXPORT
+#define __Pyx_PyMODINIT_FUNC PyObject *
+#else
+#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
+#endif
+#endif
+#ifndef CYTHON_SMALL_CODE
+#if defined(__clang__)
+    #define CYTHON_SMALL_CODE
+#elif defined(__GNUC__) && (!(defined(__cplusplus)) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)))
+    #define CYTHON_SMALL_CODE __attribute__((cold))
+#else
+    #define CYTHON_SMALL_CODE
+#endif
+#endif
+
+
+#if PY_MAJOR_VERSION < 3
+__Pyx_PyMODINIT_FUNC initspa_py(void) CYTHON_SMALL_CODE; /*proto*/
+__Pyx_PyMODINIT_FUNC initspa_py(void)
+#else
+__Pyx_PyMODINIT_FUNC PyInit_spa_py(void) CYTHON_SMALL_CODE; /*proto*/
+__Pyx_PyMODINIT_FUNC PyInit_spa_py(void)
+#if CYTHON_PEP489_MULTI_PHASE_INIT
+{
+  return PyModuleDef_Init(&__pyx_moduledef);
+}
+static int __Pyx_copy_spec_to_module(PyObject *spec, PyObject *moddict, const char* from_name, const char* to_name) {
+    PyObject *value = PyObject_GetAttrString(spec, from_name);
+    int result = 0;
+    if (likely(value)) {
+        result = PyDict_SetItemString(moddict, to_name, value);
+        Py_DECREF(value);
+    } else if (PyErr_ExceptionMatches(PyExc_AttributeError)) {
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+    } else {
+        result = -1;
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+}
+static PyObject* __pyx_pymod_create(PyObject *spec, CYTHON_UNUSED PyModuleDef *def) {
+    PyObject *module = NULL, *moddict, *modname;
+    if (__pyx_m)
+        return __Pyx_NewRef(__pyx_m);
+    modname = PyObject_GetAttrString(spec, "name");
+    if (unlikely(!modname)) goto bad;
+    module = PyModule_NewObject(modname);
+    Py_DECREF(modname);
+    if (unlikely(!module)) goto bad;
+    moddict = PyModule_GetDict(module);
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+    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "loader", "__loader__") < 0)) goto bad;
+    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "origin", "__file__") < 0)) goto bad;
+    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "parent", "__package__") < 0)) goto bad;
+    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "submodule_search_locations", "__path__") < 0)) goto bad;
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+    Py_XDECREF(module);
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+}
+
+
+static int __pyx_pymod_exec_spa_py(PyObject *__pyx_pyinit_module)
+#endif
+#endif
+{
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+  __pyx_empty_unicode = PyUnicode_FromStringAndSize("", 0); if (unlikely(!__pyx_empty_unicode)) __PYX_ERR(0, 1, __pyx_L1_error)
+  #ifdef __Pyx_CyFunction_USED
+  if (__pyx_CyFunction_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
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+  if (__pyx_FusedFunction_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
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+  #ifdef __Pyx_Coroutine_USED
+  if (__pyx_Coroutine_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  #endif
+  #ifdef __Pyx_Generator_USED
+  if (__pyx_Generator_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  #endif
+  #ifdef __Pyx_AsyncGen_USED
+  if (__pyx_AsyncGen_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  #endif
+  #ifdef __Pyx_StopAsyncIteration_USED
+  if (__pyx_StopAsyncIteration_init() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  #endif
+  /*--- Library function declarations ---*/
+  /*--- Threads initialization code ---*/
+  #if defined(__PYX_FORCE_INIT_THREADS) && __PYX_FORCE_INIT_THREADS
+  #ifdef WITH_THREAD /* Python build with threading support? */
+  PyEval_InitThreads();
+  #endif
+  #endif
+  /*--- Module creation code ---*/
+  #if CYTHON_PEP489_MULTI_PHASE_INIT
+  __pyx_m = __pyx_pyinit_module;
+  Py_INCREF(__pyx_m);
+  #else
+  #if PY_MAJOR_VERSION < 3
+  __pyx_m = Py_InitModule4("spa_py", __pyx_methods, 0, 0, PYTHON_API_VERSION); Py_XINCREF(__pyx_m);
+  #else
+  __pyx_m = PyModule_Create(&__pyx_moduledef);
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+  if (unlikely(!__pyx_m)) __PYX_ERR(0, 1, __pyx_L1_error)
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+  __pyx_d = PyModule_GetDict(__pyx_m); if (unlikely(!__pyx_d)) __PYX_ERR(0, 1, __pyx_L1_error)
+  Py_INCREF(__pyx_d);
+  __pyx_b = PyImport_AddModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_b)) __PYX_ERR(0, 1, __pyx_L1_error)
+  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
+  #if CYTHON_COMPILING_IN_PYPY
+  Py_INCREF(__pyx_b);
+  #endif
+  if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) __PYX_ERR(0, 1, __pyx_L1_error);
+  /*--- Initialize various global constants etc. ---*/
+  if (__Pyx_InitGlobals() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  #if PY_MAJOR_VERSION < 3 && (__PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT)
+  if (__Pyx_init_sys_getdefaultencoding_params() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
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+    if (PyObject_SetAttrString(__pyx_m, "__name__", __pyx_n_s_main) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  }
+  #if PY_MAJOR_VERSION >= 3
+  {
+    PyObject *modules = PyImport_GetModuleDict(); if (unlikely(!modules)) __PYX_ERR(0, 1, __pyx_L1_error)
+    if (!PyDict_GetItemString(modules, "spa_py")) {
+      if (unlikely(PyDict_SetItemString(modules, "spa_py", __pyx_m) < 0)) __PYX_ERR(0, 1, __pyx_L1_error)
+    }
+  }
+  #endif
+  /*--- Builtin init code ---*/
+  if (__Pyx_InitCachedBuiltins() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  /*--- Constants init code ---*/
+  if (__Pyx_InitCachedConstants() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  /*--- Global type/function init code ---*/
+  (void)__Pyx_modinit_global_init_code();
+  (void)__Pyx_modinit_variable_export_code();
+  (void)__Pyx_modinit_function_export_code();
+  (void)__Pyx_modinit_type_init_code();
+  (void)__Pyx_modinit_type_import_code();
+  (void)__Pyx_modinit_variable_import_code();
+  (void)__Pyx_modinit_function_import_code();
+  /*--- Execution code ---*/
+  #if defined(__Pyx_Generator_USED) || defined(__Pyx_Coroutine_USED)
+  if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  #endif
+
+  /* "spa_py.pyx":3
+ * cimport cspa_py
+ * 
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,             # <<<<<<<<<<<<<<
+ *         longitude, elevation, pressure, temperature, delta_t,
+ *         delta_ut1=0, slope=30.0, azm_rotation=-10, atmos_refract=0.5667):
+ */
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+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_spa_calc, __pyx_t_1) < 0) __PYX_ERR(0, 3, __pyx_L1_error)
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /* "spa_py.pyx":1
+ * cimport cspa_py             # <<<<<<<<<<<<<<
+ * 
+ * def spa_calc(year, month, day, hour, minute, second, time_zone, latitude,
+ */
+  __pyx_t_1 = __Pyx_PyDict_NewPresized(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_1) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+
+  /*--- Wrapped vars code ---*/
+
+  goto __pyx_L0;
+  __pyx_L1_error:;
+  __Pyx_XDECREF(__pyx_t_1);
+  if (__pyx_m) {
+    if (__pyx_d) {
+      __Pyx_AddTraceback("init spa_py", 0, __pyx_lineno, __pyx_filename);
+    }
+    Py_DECREF(__pyx_m); __pyx_m = 0;
+  } else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_ImportError, "init spa_py");
+  }
+  __pyx_L0:;
+  __Pyx_RefNannyFinishContext();
+  #if CYTHON_PEP489_MULTI_PHASE_INIT
+  return (__pyx_m != NULL) ? 0 : -1;
+  #elif PY_MAJOR_VERSION >= 3
+  return __pyx_m;
+  #else
+  return;
+  #endif
+}
+
+/* --- Runtime support code --- */
+/* Refnanny */
+#if CYTHON_REFNANNY
+static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname) {
+    PyObject *m = NULL, *p = NULL;
+    void *r = NULL;
+    m = PyImport_ImportModule((char *)modname);
+    if (!m) goto end;
+    p = PyObject_GetAttrString(m, (char *)"RefNannyAPI");
+    if (!p) goto end;
+    r = PyLong_AsVoidPtr(p);
+end:
+    Py_XDECREF(p);
+    Py_XDECREF(m);
+    return (__Pyx_RefNannyAPIStruct *)r;
+}
+#endif
+
+/* RaiseArgTupleInvalid */
+static void __Pyx_RaiseArgtupleInvalid(
+    const char* func_name,
+    int exact,
+    Py_ssize_t num_min,
+    Py_ssize_t num_max,
+    Py_ssize_t num_found)
+{
+    Py_ssize_t num_expected;
+    const char *more_or_less;
+    if (num_found < num_min) {
+        num_expected = num_min;
+        more_or_less = "at least";
+    } else {
+        num_expected = num_max;
+        more_or_less = "at most";
+    }
+    if (exact) {
+        more_or_less = "exactly";
+    }
+    PyErr_Format(PyExc_TypeError,
+                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
+                 func_name, more_or_less, num_expected,
+                 (num_expected == 1) ? "" : "s", num_found);
+}
+
+/* RaiseDoubleKeywords */
+static void __Pyx_RaiseDoubleKeywordsError(
+    const char* func_name,
+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AsString(kw_name));
+        #endif
+}
+
+/* ParseKeywords */
+static int __Pyx_ParseOptionalKeywords(
+    PyObject *kwds,
+    PyObject **argnames[],
+    PyObject *kwds2,
+    PyObject *values[],
+    Py_ssize_t num_pos_args,
+    const char* function_name)
+{
+    PyObject *key = 0, *value = 0;
+    Py_ssize_t pos = 0;
+    PyObject*** name;
+    PyObject*** first_kw_arg = argnames + num_pos_args;
+    while (PyDict_Next(kwds, &pos, &key, &value)) {
+        name = first_kw_arg;
+        while (*name && (**name != key)) name++;
+        if (*name) {
+            values[name-argnames] = value;
+            continue;
+        }
+        name = first_kw_arg;
+        #if PY_MAJOR_VERSION < 3
+        if (likely(PyString_CheckExact(key)) || likely(PyString_Check(key))) {
+            while (*name) {
+                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
+                        && _PyString_Eq(**name, key)) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    if ((**argname == key) || (
+                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
+                             && _PyString_Eq(**argname, key))) {
+                        goto arg_passed_twice;
+                    }
+                    argname++;
+                }
+            }
+        } else
+        #endif
+        if (likely(PyUnicode_Check(key))) {
+            while (*name) {
+                int cmp = (**name == key) ? 0 :
+                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                    (PyUnicode_GET_SIZE(**name) != PyUnicode_GET_SIZE(key)) ? 1 :
+                #endif
+                    PyUnicode_Compare(**name, key);
+                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                if (cmp == 0) {
+                    values[name-argnames] = value;
+                    break;
+                }
+                name++;
+            }
+            if (*name) continue;
+            else {
+                PyObject*** argname = argnames;
+                while (argname != first_kw_arg) {
+                    int cmp = (**argname == key) ? 0 :
+                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
+                        (PyUnicode_GET_SIZE(**argname) != PyUnicode_GET_SIZE(key)) ? 1 :
+                    #endif
+                        PyUnicode_Compare(**argname, key);
+                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
+                    if (cmp == 0) goto arg_passed_twice;
+                    argname++;
+                }
+            }
+        } else
+            goto invalid_keyword_type;
+        if (kwds2) {
+            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
+        } else {
+            goto invalid_keyword;
+        }
+    }
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, key);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%.200s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%.200s() got an unexpected keyword argument '%.200s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
+}
+
+/* PyObjectGetAttrStr */
+#if CYTHON_USE_TYPE_SLOTS
+static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
+    PyTypeObject* tp = Py_TYPE(obj);
+    if (likely(tp->tp_getattro))
+        return tp->tp_getattro(obj, attr_name);
+#if PY_MAJOR_VERSION < 3
+    if (likely(tp->tp_getattr))
+        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
+#endif
+    return PyObject_GetAttr(obj, attr_name);
+}
+#endif
+
+/* PyErrFetchRestore */
+#if CYTHON_FAST_THREAD_STATE
+static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    tmp_type = tstate->curexc_type;
+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+}
+static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+}
+#endif
+
+/* CLineInTraceback */
+#ifndef CYTHON_CLINE_IN_TRACEBACK
+static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_line) {
+    PyObject *use_cline;
+    PyObject *ptype, *pvalue, *ptraceback;
+#if CYTHON_COMPILING_IN_CPYTHON
+    PyObject **cython_runtime_dict;
+#endif
+    if (unlikely(!__pyx_cython_runtime)) {
+        return c_line;
+    }
+    __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
+#if CYTHON_COMPILING_IN_CPYTHON
+    cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
+    if (likely(cython_runtime_dict)) {
+      use_cline = __Pyx_PyDict_GetItemStr(*cython_runtime_dict, __pyx_n_s_cline_in_traceback);
+    } else
+#endif
+    {
+      PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback);
+      if (use_cline_obj) {
+        use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True;
+        Py_DECREF(use_cline_obj);
+      } else {
+        PyErr_Clear();
+        use_cline = NULL;
+      }
+    }
+    if (!use_cline) {
+        c_line = 0;
+        PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False);
+    }
+    else if (PyObject_Not(use_cline) != 0) {
+        c_line = 0;
+    }
+    __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
+    return c_line;
+}
+#endif
+
+/* CodeObjectCache */
+static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
+    int start = 0, mid = 0, end = count - 1;
+    if (end >= 0 && code_line > entries[end].code_line) {
+        return count;
+    }
+    while (start < end) {
+        mid = start + (end - start) / 2;
+        if (code_line < entries[mid].code_line) {
+            end = mid;
+        } else if (code_line > entries[mid].code_line) {
+             start = mid + 1;
+        } else {
+            return mid;
+        }
+    }
+    if (code_line <= entries[mid].code_line) {
+        return mid;
+    } else {
+        return mid + 1;
+    }
+}
+static PyCodeObject *__pyx_find_code_object(int code_line) {
+    PyCodeObject* code_object;
+    int pos;
+    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
+        return NULL;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
+        return NULL;
+    }
+    code_object = __pyx_code_cache.entries[pos].code_object;
+    Py_INCREF(code_object);
+    return code_object;
+}
+static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
+    int pos, i;
+    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
+    if (unlikely(!code_line)) {
+        return;
+    }
+    if (unlikely(!entries)) {
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (likely(entries)) {
+            __pyx_code_cache.entries = entries;
+            __pyx_code_cache.max_count = 64;
+            __pyx_code_cache.count = 1;
+            entries[0].code_line = code_line;
+            entries[0].code_object = code_object;
+            Py_INCREF(code_object);
+        }
+        return;
+    }
+    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
+    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
+        PyCodeObject* tmp = entries[pos].code_object;
+        entries[pos].code_object = code_object;
+        Py_DECREF(tmp);
+        return;
+    }
+    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
+        int new_max = __pyx_code_cache.max_count + 64;
+        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
+            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
+        if (unlikely(!entries)) {
+            return;
+        }
+        __pyx_code_cache.entries = entries;
+        __pyx_code_cache.max_count = new_max;
+    }
+    for (i=__pyx_code_cache.count; i>pos; i--) {
+        entries[i] = entries[i-1];
+    }
+    entries[pos].code_line = code_line;
+    entries[pos].code_object = code_object;
+    __pyx_code_cache.count++;
+    Py_INCREF(code_object);
+}
+
+/* AddTraceback */
+#include "compile.h"
+#include "frameobject.h"
+#include "traceback.h"
+static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
+            const char *funcname, int c_line,
+            int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyObject *py_srcfile = 0;
+    PyObject *py_funcname = 0;
+    #if PY_MAJOR_VERSION < 3
+    py_srcfile = PyString_FromString(filename);
+    #else
+    py_srcfile = PyUnicode_FromString(filename);
+    #endif
+    if (!py_srcfile) goto bad;
+    if (c_line) {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #else
+        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
+        #endif
+    }
+    else {
+        #if PY_MAJOR_VERSION < 3
+        py_funcname = PyString_FromString(funcname);
+        #else
+        py_funcname = PyUnicode_FromString(funcname);
+        #endif
+    }
+    if (!py_funcname) goto bad;
+    py_code = __Pyx_PyCode_New(
+        0,
+        0,
+        0,
+        0,
+        0,
+        __pyx_empty_bytes, /*PyObject *code,*/
+        __pyx_empty_tuple, /*PyObject *consts,*/
+        __pyx_empty_tuple, /*PyObject *names,*/
+        __pyx_empty_tuple, /*PyObject *varnames,*/
+        __pyx_empty_tuple, /*PyObject *freevars,*/
+        __pyx_empty_tuple, /*PyObject *cellvars,*/
+        py_srcfile,   /*PyObject *filename,*/
+        py_funcname,  /*PyObject *name,*/
+        py_line,
+        __pyx_empty_bytes  /*PyObject *lnotab*/
+    );
+    Py_DECREF(py_srcfile);
+    Py_DECREF(py_funcname);
+    return py_code;
+bad:
+    Py_XDECREF(py_srcfile);
+    Py_XDECREF(py_funcname);
+    return NULL;
+}
+static void __Pyx_AddTraceback(const char *funcname, int c_line,
+                               int py_line, const char *filename) {
+    PyCodeObject *py_code = 0;
+    PyFrameObject *py_frame = 0;
+    PyThreadState *tstate = __Pyx_PyThreadState_Current;
+    if (c_line) {
+        c_line = __Pyx_CLineForTraceback(tstate, c_line);
+    }
+    py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
+    if (!py_code) {
+        py_code = __Pyx_CreateCodeObjectForTraceback(
+            funcname, c_line, py_line, filename);
+        if (!py_code) goto bad;
+        __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
+    }
+    py_frame = PyFrame_New(
+        tstate,            /*PyThreadState *tstate,*/
+        py_code,           /*PyCodeObject *code,*/
+        __pyx_d,    /*PyObject *globals,*/
+        0                  /*PyObject *locals*/
+    );
+    if (!py_frame) goto bad;
+    __Pyx_PyFrame_SetLineNumber(py_frame, py_line);
+    PyTraceBack_Here(py_frame);
+bad:
+    Py_XDECREF(py_code);
+    Py_XDECREF(py_frame);
+}
+
+/* CIntFromPyVerify */
+#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
+#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
+    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
+#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
+    {\
+        func_type value = func_value;\
+        if (sizeof(target_type) < sizeof(func_type)) {\
+            if (unlikely(value != (func_type) (target_type) value)) {\
+                func_type zero = 0;\
+                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
+                    return (target_type) -1;\
+                if (is_unsigned && unlikely(value < zero))\
+                    goto raise_neg_overflow;\
+                else\
+                    goto raise_overflow;\
+            }\
+        }\
+        return (target_type) value;\
+    }
+
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
+    const int neg_one = (int) -1, const_zero = (int) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(int) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(int) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(int) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(int),
+                                     little, !is_unsigned);
+    }
+}
+
+static PyObject* __pyx_convert__to_py_spa_data(spa_data s) {
+  PyObject* res;
+  PyObject* member;
+  res = __Pyx_PyDict_NewPresized(27); if (unlikely(!res)) return NULL;
+  member = __Pyx_PyInt_From_int(s.year); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_year, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.month); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_month, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.day); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_day, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.hour); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_hour, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.minute); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_minute, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.second); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_second, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.delta_ut1); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_delta_ut1, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.delta_t); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_delta_t, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.time_zone); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_time_zone, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.longitude); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_longitude, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.latitude); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_latitude, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.elevation); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_elevation, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.pressure); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_pressure, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.temperature); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_temperature, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.slope); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_slope, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.azm_rotation); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azm_rotation, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.atmos_refract); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_atmos_refract, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = __Pyx_PyInt_From_int(s.function); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_function, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.e0); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_e0, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.e); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_e, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.zenith); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_zenith, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.azimuth_astro); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azimuth_astro, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.azimuth); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azimuth, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.incidence); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_incidence, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.suntransit); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_suntransit, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.sunrise); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_sunrise, member) < 0)) goto bad;
+  Py_DECREF(member);
+  member = PyFloat_FromDouble(s.sunset); if (unlikely(!member)) goto bad;
+  if (unlikely(PyDict_SetItem(res, __pyx_n_s_sunset, member) < 0)) goto bad;
+  Py_DECREF(member);
+  return res;
+  bad:
+  Py_XDECREF(member);
+  Py_DECREF(res);
+  return NULL;
+}
+/* CIntFromPy */
+static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
+    const int neg_one = (int) -1, const_zero = (int) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(int) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (int) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (int) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) {
+                            return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) {
+                            return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) {
+                            return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (int) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(int) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (int) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                            return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                            return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
+                            return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
+                            return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(int) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            int val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (int) -1;
+        }
+    } else {
+        int val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (int) -1;
+        val = __Pyx_PyInt_As_int(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to int");
+    return (int) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to int");
+    return (int) -1;
+}
+
+/* CIntToPy */
+static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
+    const long neg_one = (long) -1, const_zero = (long) 0;
+    const int is_unsigned = neg_one > const_zero;
+    if (is_unsigned) {
+        if (sizeof(long) < sizeof(long)) {
+            return PyInt_FromLong((long) value);
+        } else if (sizeof(long) <= sizeof(unsigned long)) {
+            return PyLong_FromUnsignedLong((unsigned long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
+#endif
+        }
+    } else {
+        if (sizeof(long) <= sizeof(long)) {
+            return PyInt_FromLong((long) value);
+#ifdef HAVE_LONG_LONG
+        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+            return PyLong_FromLongLong((PY_LONG_LONG) value);
+#endif
+        }
+    }
+    {
+        int one = 1; int little = (int)*(unsigned char *)&one;
+        unsigned char *bytes = (unsigned char *)&value;
+        return _PyLong_FromByteArray(bytes, sizeof(long),
+                                     little, !is_unsigned);
+    }
+}
+
+/* CIntFromPy */
+static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
+    const long neg_one = (long) -1, const_zero = (long) 0;
+    const int is_unsigned = neg_one > const_zero;
+#if PY_MAJOR_VERSION < 3
+    if (likely(PyInt_Check(x))) {
+        if (sizeof(long) < sizeof(long)) {
+            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
+        } else {
+            long val = PyInt_AS_LONG(x);
+            if (is_unsigned && unlikely(val < 0)) {
+                goto raise_neg_overflow;
+            }
+            return (long) val;
+        }
+    } else
+#endif
+    if (likely(PyLong_Check(x))) {
+        if (is_unsigned) {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (long) 0;
+                case  1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0])
+                case 2:
+                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) {
+                            return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) {
+                            return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) {
+                            return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
+                        }
+                    }
+                    break;
+            }
+#endif
+#if CYTHON_COMPILING_IN_CPYTHON
+            if (unlikely(Py_SIZE(x) < 0)) {
+                goto raise_neg_overflow;
+            }
+#else
+            {
+                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
+                if (unlikely(result < 0))
+                    return (long) -1;
+                if (unlikely(result == 1))
+                    goto raise_neg_overflow;
+            }
+#endif
+            if (sizeof(long) <= sizeof(unsigned long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
+#endif
+            }
+        } else {
+#if CYTHON_USE_PYLONG_INTERNALS
+            const digit* digits = ((PyLongObject*)x)->ob_digit;
+            switch (Py_SIZE(x)) {
+                case  0: return (long) 0;
+                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0]))
+                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +digits[0])
+                case -2:
+                    if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 2:
+                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                            return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case -3:
+                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 3:
+                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                            return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case -4:
+                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
+                            return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+                case 4:
+                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
+                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
+                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
+                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
+                            return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
+                        }
+                    }
+                    break;
+            }
+#endif
+            if (sizeof(long) <= sizeof(long)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
+#ifdef HAVE_LONG_LONG
+            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
+                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
+#endif
+            }
+        }
+        {
+#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
+            PyErr_SetString(PyExc_RuntimeError,
+                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
+#else
+            long val;
+            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
+ #if PY_MAJOR_VERSION < 3
+            if (likely(v) && !PyLong_Check(v)) {
+                PyObject *tmp = v;
+                v = PyNumber_Long(tmp);
+                Py_DECREF(tmp);
+            }
+ #endif
+            if (likely(v)) {
+                int one = 1; int is_little = (int)*(unsigned char *)&one;
+                unsigned char *bytes = (unsigned char *)&val;
+                int ret = _PyLong_AsByteArray((PyLongObject *)v,
+                                              bytes, sizeof(val),
+                                              is_little, !is_unsigned);
+                Py_DECREF(v);
+                if (likely(!ret))
+                    return val;
+            }
+#endif
+            return (long) -1;
+        }
+    } else {
+        long val;
+        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
+        if (!tmp) return (long) -1;
+        val = __Pyx_PyInt_As_long(tmp);
+        Py_DECREF(tmp);
+        return val;
+    }
+raise_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "value too large to convert to long");
+    return (long) -1;
+raise_neg_overflow:
+    PyErr_SetString(PyExc_OverflowError,
+        "can't convert negative value to long");
+    return (long) -1;
+}
+
+/* FastTypeChecks */
+#if CYTHON_COMPILING_IN_CPYTHON
+static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
+    while (a) {
+        a = a->tp_base;
+        if (a == b)
+            return 1;
+    }
+    return b == &PyBaseObject_Type;
+}
+static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
+    PyObject *mro;
+    if (a == b) return 1;
+    mro = a->tp_mro;
+    if (likely(mro)) {
+        Py_ssize_t i, n;
+        n = PyTuple_GET_SIZE(mro);
+        for (i = 0; i < n; i++) {
+            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
+                return 1;
+        }
+        return 0;
+    }
+    return __Pyx_InBases(a, b);
+}
+#if PY_MAJOR_VERSION == 2
+static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
+    PyObject *exception, *value, *tb;
+    int res;
+    __Pyx_PyThreadState_declare
+    __Pyx_PyThreadState_assign
+    __Pyx_ErrFetch(&exception, &value, &tb);
+    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
+    if (unlikely(res == -1)) {
+        PyErr_WriteUnraisable(err);
+        res = 0;
+    }
+    if (!res) {
+        res = PyObject_IsSubclass(err, exc_type2);
+        if (unlikely(res == -1)) {
+            PyErr_WriteUnraisable(err);
+            res = 0;
+        }
+    }
+    __Pyx_ErrRestore(exception, value, tb);
+    return res;
+}
+#else
+static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
+    int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0;
+    if (!res) {
+        res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
+    }
+    return res;
+}
+#endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
+    if (likely(err == exc_type)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
+    }
+    return PyErr_GivenExceptionMatches(err, exc_type);
+}
+static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
+    if (likely(err == exc_type1 || err == exc_type2)) return 1;
+    if (likely(PyExceptionClass_Check(err))) {
+        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
+    }
+    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
+}
+#endif
+
+/* CheckBinaryVersion */
+static int __Pyx_check_binary_version(void) {
+    char ctversion[4], rtversion[4];
+    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
+    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
+    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
+        char message[200];
+        PyOS_snprintf(message, sizeof(message),
+                      "compiletime version %s of module '%.100s' "
+                      "does not match runtime version %s",
+                      ctversion, __Pyx_MODULE_NAME, rtversion);
+        return PyErr_WarnEx(NULL, message, 1);
+    }
+    return 0;
+}
+
+/* InitStrings */
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+    while (t->p) {
+        #if PY_MAJOR_VERSION < 3
+        if (t->is_unicode) {
+            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
+        } else if (t->intern) {
+            *t->p = PyString_InternFromString(t->s);
+        } else {
+            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+        }
+        #else
+        if (t->is_unicode | t->is_str) {
+            if (t->intern) {
+                *t->p = PyUnicode_InternFromString(t->s);
+            } else if (t->encoding) {
+                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
+            } else {
+                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
+            }
+        } else {
+            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
+        }
+        #endif
+        if (!*t->p)
+            return -1;
+        if (PyObject_Hash(*t->p) == -1)
+            return -1;
+        ++t;
+    }
+    return 0;
+}
+
+static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
+    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
+}
+static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
+    Py_ssize_t ignore;
+    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
+}
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+#if !CYTHON_PEP393_ENABLED
+static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+    char* defenc_c;
+    PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
+    if (!defenc) return NULL;
+    defenc_c = PyBytes_AS_STRING(defenc);
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+    {
+        char* end = defenc_c + PyBytes_GET_SIZE(defenc);
+        char* c;
+        for (c = defenc_c; c < end; c++) {
+            if ((unsigned char) (*c) >= 128) {
+                PyUnicode_AsASCIIString(o);
+                return NULL;
+            }
+        }
+    }
+#endif
+    *length = PyBytes_GET_SIZE(defenc);
+    return defenc_c;
+}
+#else
+static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+    if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL;
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+    if (likely(PyUnicode_IS_ASCII(o))) {
+        *length = PyUnicode_GET_LENGTH(o);
+        return PyUnicode_AsUTF8(o);
+    } else {
+        PyUnicode_AsASCIIString(o);
+        return NULL;
+    }
+#else
+    return PyUnicode_AsUTF8AndSize(o, length);
+#endif
+}
+#endif
+#endif
+static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
+#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
+    if (
+#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
+            __Pyx_sys_getdefaultencoding_not_ascii &&
+#endif
+            PyUnicode_Check(o)) {
+        return __Pyx_PyUnicode_AsStringAndSize(o, length);
+    } else
+#endif
+#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
+    if (PyByteArray_Check(o)) {
+        *length = PyByteArray_GET_SIZE(o);
+        return PyByteArray_AS_STRING(o);
+    } else
+#endif
+    {
+        char* result;
+        int r = PyBytes_AsStringAndSize(o, &result, length);
+        if (unlikely(r < 0)) {
+            return NULL;
+        } else {
+            return result;
+        }
+    }
+}
+static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
+   int is_true = x == Py_True;
+   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
+   else return PyObject_IsTrue(x);
+}
+static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
+#if PY_MAJOR_VERSION >= 3
+    if (PyLong_Check(result)) {
+        if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
+                "__int__ returned non-int (type %.200s).  "
+                "The ability to return an instance of a strict subclass of int "
+                "is deprecated, and may be removed in a future version of Python.",
+                Py_TYPE(result)->tp_name)) {
+            Py_DECREF(result);
+            return NULL;
+        }
+        return result;
+    }
+#endif
+    PyErr_Format(PyExc_TypeError,
+                 "__%.4s__ returned non-%.4s (type %.200s)",
+                 type_name, type_name, Py_TYPE(result)->tp_name);
+    Py_DECREF(result);
+    return NULL;
+}
+static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
+#if CYTHON_USE_TYPE_SLOTS
+  PyNumberMethods *m;
+#endif
+  const char *name = NULL;
+  PyObject *res = NULL;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_Check(x) || PyLong_Check(x)))
+#else
+  if (likely(PyLong_Check(x)))
+#endif
+    return __Pyx_NewRef(x);
+#if CYTHON_USE_TYPE_SLOTS
+  m = Py_TYPE(x)->tp_as_number;
+  #if PY_MAJOR_VERSION < 3
+  if (m && m->nb_int) {
+    name = "int";
+    res = m->nb_int(x);
+  }
+  else if (m && m->nb_long) {
+    name = "long";
+    res = m->nb_long(x);
+  }
+  #else
+  if (likely(m && m->nb_int)) {
+    name = "int";
+    res = m->nb_int(x);
+  }
+  #endif
+#else
+  if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) {
+    res = PyNumber_Int(x);
+  }
+#endif
+  if (likely(res)) {
+#if PY_MAJOR_VERSION < 3
+    if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) {
+#else
+    if (unlikely(!PyLong_CheckExact(res))) {
+#endif
+        return __Pyx_PyNumber_IntOrLongWrongResultType(res, name);
+    }
+  }
+  else if (!PyErr_Occurred()) {
+    PyErr_SetString(PyExc_TypeError,
+                    "an integer is required");
+  }
+  return res;
+}
+static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
+  Py_ssize_t ival;
+  PyObject *x;
+#if PY_MAJOR_VERSION < 3
+  if (likely(PyInt_CheckExact(b))) {
+    if (sizeof(Py_ssize_t) >= sizeof(long))
+        return PyInt_AS_LONG(b);
+    else
+        return PyInt_AsSsize_t(x);
+  }
+#endif
+  if (likely(PyLong_CheckExact(b))) {
+    #if CYTHON_USE_PYLONG_INTERNALS
+    const digit* digits = ((PyLongObject*)b)->ob_digit;
+    const Py_ssize_t size = Py_SIZE(b);
+    if (likely(__Pyx_sst_abs(size) <= 1)) {
+        ival = likely(size) ? digits[0] : 0;
+        if (size == -1) ival = -ival;
+        return ival;
+    } else {
+      switch (size) {
+         case 2:
+           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -2:
+           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case 3:
+           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -3:
+           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case 4:
+           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
+             return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+         case -4:
+           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
+             return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
+           }
+           break;
+      }
+    }
+    #endif
+    return PyLong_AsSsize_t(b);
+  }
+  x = PyNumber_Index(b);
+  if (!x) return -1;
+  ival = PyInt_AsSsize_t(x);
+  Py_DECREF(x);
+  return ival;
+}
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
+static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
+    return PyInt_FromSize_t(ival);
+}
+
+
+#endif /* Py_PYTHON_H */

From 05f4e4567d5bba93c941c18716f62d0cedc14426 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Wed, 12 Sep 2018 21:11:51 -0700
Subject: [PATCH 10/16] ENH: ignore cython generated spa_py.c file

* git rm spa_py.c to remove it from repo
* add cython to option extra requires
* use full paths in spa_c_files for sources
* add line to bug fixes addressing #168
---
 .gitignore                             |    1 +
 docs/sphinx/source/whatsnew/v0.6.0.rst |    1 +
 pvlib/spa_c_files/setup.py             |    5 +-
 pvlib/spa_c_files/spa_py.c             | 3247 ------------------------
 setup.py                               |    3 +-
 5 files changed, 8 insertions(+), 3249 deletions(-)
 delete mode 100644 pvlib/spa_c_files/spa_py.c

diff --git a/.gitignore b/.gitignore
index 518a545635..38e7e4a1ff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,6 +31,7 @@ venv/
 
 # spa_c_files builds
 pvlib/spa_c_files/build*
+pvlib/spa_c_files/spa_py.c
 
 # spa_c_files source
 pvlib/spa_c_files/spa.c
diff --git a/docs/sphinx/source/whatsnew/v0.6.0.rst b/docs/sphinx/source/whatsnew/v0.6.0.rst
index 83af55a845..a7e0bab2a2 100644
--- a/docs/sphinx/source/whatsnew/v0.6.0.rst
+++ b/docs/sphinx/source/whatsnew/v0.6.0.rst
@@ -156,6 +156,7 @@ Bug fixes
 * Fixed bug in tracking.singleaxis that mistakenly assigned nan values when
   the Sun was still above the horizon. No effect on systems with axis_tilt=0.
   (:issue:`569`)
+* Patch SPA C-files to fix timezone macro name clash with `pyconfig.h`. (:issue:`168`)
 
 
 Documentation
diff --git a/pvlib/spa_c_files/setup.py b/pvlib/spa_c_files/setup.py
index f02c15ce0a..f0279b6450 100644
--- a/pvlib/spa_c_files/setup.py
+++ b/pvlib/spa_c_files/setup.py
@@ -31,6 +31,7 @@
 SPA_C = SPA_C.replace(b'timezone', b'time_zone')
 with open(os.path.join(DIRNAME, 'spa.c'), 'wb') as f:
     f.write(SPA_C)
+
 # get spa.h
 with request.urlopen(SPA_H_URL) as response:
     SPA_H = response.read()
@@ -40,6 +41,8 @@
 with open(os.path.join(DIRNAME, 'spa.h'), 'wb') as f:
     f.write(SPA_H)
 
+SPA_SOURCES = [os.path.join(DIRNAME, src) for src in ['spa_py.pyx', 'spa.c']]
+
 setup(
-    ext_modules=cythonize([Extension('spa_py', ['spa_py.pyx', 'spa.c'])])
+    ext_modules=cythonize([Extension('spa_py', SPA_SOURCES)])
 )
diff --git a/pvlib/spa_c_files/spa_py.c b/pvlib/spa_c_files/spa_py.c
deleted file mode 100644
index 378c34c14a..0000000000
--- a/pvlib/spa_c_files/spa_py.c
+++ /dev/null
@@ -1,3247 +0,0 @@
-/* Generated by Cython 0.28.5 */
-
-/* BEGIN: Cython Metadata
-{
-    "distutils": {
-        "depends": [
-            "spa.h"
-        ],
-        "include_dirs": [
-            "."
-        ],
-        "name": "spa_py",
-        "sources": [
-            "spa_py.pyx",
-            "spa.c"
-        ]
-    },
-    "module_name": "spa_py"
-}
-END: Cython Metadata */
-
-#define PY_SSIZE_T_CLEAN
-#include "Python.h"
-#ifndef Py_PYTHON_H
-    #error Python headers needed to compile C extensions, please install development version of Python.
-#elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
-    #error Cython requires Python 2.6+ or Python 3.3+.
-#else
-#define CYTHON_ABI "0_28_5"
-#define CYTHON_FUTURE_DIVISION 0
-#include <stddef.h>
-#ifndef offsetof
-  #define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
-#endif
-#if !defined(WIN32) && !defined(MS_WINDOWS)
-  #ifndef __stdcall
-    #define __stdcall
-  #endif
-  #ifndef __cdecl
-    #define __cdecl
-  #endif
-  #ifndef __fastcall
-    #define __fastcall
-  #endif
-#endif
-#ifndef DL_IMPORT
-  #define DL_IMPORT(t) t
-#endif
-#ifndef DL_EXPORT
-  #define DL_EXPORT(t) t
-#endif
-#define __PYX_COMMA ,
-#ifndef HAVE_LONG_LONG
-  #if PY_VERSION_HEX >= 0x02070000
-    #define HAVE_LONG_LONG
-  #endif
-#endif
-#ifndef PY_LONG_LONG
-  #define PY_LONG_LONG LONG_LONG
-#endif
-#ifndef Py_HUGE_VAL
-  #define Py_HUGE_VAL HUGE_VAL
-#endif
-#ifdef PYPY_VERSION
-  #define CYTHON_COMPILING_IN_PYPY 1
-  #define CYTHON_COMPILING_IN_PYSTON 0
-  #define CYTHON_COMPILING_IN_CPYTHON 0
-  #undef CYTHON_USE_TYPE_SLOTS
-  #define CYTHON_USE_TYPE_SLOTS 0
-  #undef CYTHON_USE_PYTYPE_LOOKUP
-  #define CYTHON_USE_PYTYPE_LOOKUP 0
-  #if PY_VERSION_HEX < 0x03050000
-    #undef CYTHON_USE_ASYNC_SLOTS
-    #define CYTHON_USE_ASYNC_SLOTS 0
-  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
-    #define CYTHON_USE_ASYNC_SLOTS 1
-  #endif
-  #undef CYTHON_USE_PYLIST_INTERNALS
-  #define CYTHON_USE_PYLIST_INTERNALS 0
-  #undef CYTHON_USE_UNICODE_INTERNALS
-  #define CYTHON_USE_UNICODE_INTERNALS 0
-  #undef CYTHON_USE_UNICODE_WRITER
-  #define CYTHON_USE_UNICODE_WRITER 0
-  #undef CYTHON_USE_PYLONG_INTERNALS
-  #define CYTHON_USE_PYLONG_INTERNALS 0
-  #undef CYTHON_AVOID_BORROWED_REFS
-  #define CYTHON_AVOID_BORROWED_REFS 1
-  #undef CYTHON_ASSUME_SAFE_MACROS
-  #define CYTHON_ASSUME_SAFE_MACROS 0
-  #undef CYTHON_UNPACK_METHODS
-  #define CYTHON_UNPACK_METHODS 0
-  #undef CYTHON_FAST_THREAD_STATE
-  #define CYTHON_FAST_THREAD_STATE 0
-  #undef CYTHON_FAST_PYCALL
-  #define CYTHON_FAST_PYCALL 0
-  #undef CYTHON_PEP489_MULTI_PHASE_INIT
-  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
-  #undef CYTHON_USE_TP_FINALIZE
-  #define CYTHON_USE_TP_FINALIZE 0
-#elif defined(PYSTON_VERSION)
-  #define CYTHON_COMPILING_IN_PYPY 0
-  #define CYTHON_COMPILING_IN_PYSTON 1
-  #define CYTHON_COMPILING_IN_CPYTHON 0
-  #ifndef CYTHON_USE_TYPE_SLOTS
-    #define CYTHON_USE_TYPE_SLOTS 1
-  #endif
-  #undef CYTHON_USE_PYTYPE_LOOKUP
-  #define CYTHON_USE_PYTYPE_LOOKUP 0
-  #undef CYTHON_USE_ASYNC_SLOTS
-  #define CYTHON_USE_ASYNC_SLOTS 0
-  #undef CYTHON_USE_PYLIST_INTERNALS
-  #define CYTHON_USE_PYLIST_INTERNALS 0
-  #ifndef CYTHON_USE_UNICODE_INTERNALS
-    #define CYTHON_USE_UNICODE_INTERNALS 1
-  #endif
-  #undef CYTHON_USE_UNICODE_WRITER
-  #define CYTHON_USE_UNICODE_WRITER 0
-  #undef CYTHON_USE_PYLONG_INTERNALS
-  #define CYTHON_USE_PYLONG_INTERNALS 0
-  #ifndef CYTHON_AVOID_BORROWED_REFS
-    #define CYTHON_AVOID_BORROWED_REFS 0
-  #endif
-  #ifndef CYTHON_ASSUME_SAFE_MACROS
-    #define CYTHON_ASSUME_SAFE_MACROS 1
-  #endif
-  #ifndef CYTHON_UNPACK_METHODS
-    #define CYTHON_UNPACK_METHODS 1
-  #endif
-  #undef CYTHON_FAST_THREAD_STATE
-  #define CYTHON_FAST_THREAD_STATE 0
-  #undef CYTHON_FAST_PYCALL
-  #define CYTHON_FAST_PYCALL 0
-  #undef CYTHON_PEP489_MULTI_PHASE_INIT
-  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
-  #undef CYTHON_USE_TP_FINALIZE
-  #define CYTHON_USE_TP_FINALIZE 0
-#else
-  #define CYTHON_COMPILING_IN_PYPY 0
-  #define CYTHON_COMPILING_IN_PYSTON 0
-  #define CYTHON_COMPILING_IN_CPYTHON 1
-  #ifndef CYTHON_USE_TYPE_SLOTS
-    #define CYTHON_USE_TYPE_SLOTS 1
-  #endif
-  #if PY_VERSION_HEX < 0x02070000
-    #undef CYTHON_USE_PYTYPE_LOOKUP
-    #define CYTHON_USE_PYTYPE_LOOKUP 0
-  #elif !defined(CYTHON_USE_PYTYPE_LOOKUP)
-    #define CYTHON_USE_PYTYPE_LOOKUP 1
-  #endif
-  #if PY_MAJOR_VERSION < 3
-    #undef CYTHON_USE_ASYNC_SLOTS
-    #define CYTHON_USE_ASYNC_SLOTS 0
-  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
-    #define CYTHON_USE_ASYNC_SLOTS 1
-  #endif
-  #if PY_VERSION_HEX < 0x02070000
-    #undef CYTHON_USE_PYLONG_INTERNALS
-    #define CYTHON_USE_PYLONG_INTERNALS 0
-  #elif !defined(CYTHON_USE_PYLONG_INTERNALS)
-    #define CYTHON_USE_PYLONG_INTERNALS 1
-  #endif
-  #ifndef CYTHON_USE_PYLIST_INTERNALS
-    #define CYTHON_USE_PYLIST_INTERNALS 1
-  #endif
-  #ifndef CYTHON_USE_UNICODE_INTERNALS
-    #define CYTHON_USE_UNICODE_INTERNALS 1
-  #endif
-  #if PY_VERSION_HEX < 0x030300F0
-    #undef CYTHON_USE_UNICODE_WRITER
-    #define CYTHON_USE_UNICODE_WRITER 0
-  #elif !defined(CYTHON_USE_UNICODE_WRITER)
-    #define CYTHON_USE_UNICODE_WRITER 1
-  #endif
-  #ifndef CYTHON_AVOID_BORROWED_REFS
-    #define CYTHON_AVOID_BORROWED_REFS 0
-  #endif
-  #ifndef CYTHON_ASSUME_SAFE_MACROS
-    #define CYTHON_ASSUME_SAFE_MACROS 1
-  #endif
-  #ifndef CYTHON_UNPACK_METHODS
-    #define CYTHON_UNPACK_METHODS 1
-  #endif
-  #ifndef CYTHON_FAST_THREAD_STATE
-    #define CYTHON_FAST_THREAD_STATE 1
-  #endif
-  #ifndef CYTHON_FAST_PYCALL
-    #define CYTHON_FAST_PYCALL 1
-  #endif
-  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
-    #define CYTHON_PEP489_MULTI_PHASE_INIT (0 && PY_VERSION_HEX >= 0x03050000)
-  #endif
-  #ifndef CYTHON_USE_TP_FINALIZE
-    #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1)
-  #endif
-#endif
-#if !defined(CYTHON_FAST_PYCCALL)
-#define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
-#endif
-#if CYTHON_USE_PYLONG_INTERNALS
-  #include "longintrepr.h"
-  #undef SHIFT
-  #undef BASE
-  #undef MASK
-#endif
-#ifndef __has_attribute
-  #define __has_attribute(x) 0
-#endif
-#ifndef __has_cpp_attribute
-  #define __has_cpp_attribute(x) 0
-#endif
-#ifndef CYTHON_RESTRICT
-  #if defined(__GNUC__)
-    #define CYTHON_RESTRICT __restrict__
-  #elif defined(_MSC_VER) && _MSC_VER >= 1400
-    #define CYTHON_RESTRICT __restrict
-  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-    #define CYTHON_RESTRICT restrict
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-    #define CYTHON_RESTRICT
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-# if defined(__GNUC__)
-#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
-#     define CYTHON_UNUSED __attribute__ ((__unused__))
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-#     define CYTHON_UNUSED
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-# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
-#   define CYTHON_UNUSED __attribute__ ((__unused__))
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-#   define CYTHON_UNUSED
-# endif
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-# if CYTHON_COMPILING_IN_CPYTHON
-#  define CYTHON_NCP_UNUSED
-# else
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-#define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None)
-#ifdef _MSC_VER
-    #ifndef _MSC_STDINT_H_
-        #if _MSC_VER < 1300
-           typedef unsigned char     uint8_t;
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-        #else
-           typedef unsigned __int8   uint8_t;
-           typedef unsigned __int32  uint32_t;
-        #endif
-    #endif
-#else
-   #include <stdint.h>
-#endif
-#ifndef CYTHON_FALLTHROUGH
-  #if defined(__cplusplus) && __cplusplus >= 201103L
-    #if __has_cpp_attribute(fallthrough)
-      #define CYTHON_FALLTHROUGH [[fallthrough]]
-    #elif __has_cpp_attribute(clang::fallthrough)
-      #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
-    #elif __has_cpp_attribute(gnu::fallthrough)
-      #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
-    #endif
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-  #ifndef CYTHON_FALLTHROUGH
-    #if __has_attribute(fallthrough)
-      #define CYTHON_FALLTHROUGH __attribute__((fallthrough))
-    #else
-      #define CYTHON_FALLTHROUGH
-    #endif
-  #endif
-  #if defined(__clang__ ) && defined(__apple_build_version__)
-    #if __apple_build_version__ < 7000000
-      #undef  CYTHON_FALLTHROUGH
-      #define CYTHON_FALLTHROUGH
-    #endif
-  #endif
-#endif
-
-#ifndef CYTHON_INLINE
-  #if defined(__clang__)
-    #define CYTHON_INLINE __inline__ __attribute__ ((__unused__))
-  #elif defined(__GNUC__)
-    #define CYTHON_INLINE __inline__
-  #elif defined(_MSC_VER)
-    #define CYTHON_INLINE __inline
-  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-    #define CYTHON_INLINE inline
-  #else
-    #define CYTHON_INLINE
-  #endif
-#endif
-
-#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX < 0x02070600 && !defined(Py_OptimizeFlag)
-  #define Py_OptimizeFlag 0
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-#define __PYX_BUILD_PY_SSIZE_T "n"
-#define CYTHON_FORMAT_SSIZE_T "z"
-#if PY_MAJOR_VERSION < 3
-  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
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-  #define __Pyx_DefaultClassType PyClass_Type
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-#endif
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-  #define PyObject_Realloc(p)  PyMem_Realloc(p)
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-  #define __Pyx_PyCode_HasFreeVars(co)  PyCode_HasFreeVars(co)
-  #define __Pyx_PyFrame_SetLineNumber(frame, lineno) PyFrame_SetLineNumber(frame, lineno)
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-  #define __Pyx_PyFrame_SetLineNumber(frame, lineno)  (frame)->f_lineno = (lineno)
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-#if !CYTHON_FAST_THREAD_STATE || PY_VERSION_HEX < 0x02070000
-  #define __Pyx_PyThreadState_Current PyThreadState_GET()
-#elif PY_VERSION_HEX >= 0x03060000
-  #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet()
-#elif PY_VERSION_HEX >= 0x03000000
-  #define __Pyx_PyThreadState_Current PyThreadState_GET()
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-static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
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-  *key = Py_tss_NEEDS_INIT;
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-static CYTHON_INLINE void PyThread_tss_free(Py_tss_t *key) {
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-static CYTHON_INLINE int PyThread_tss_is_created(Py_tss_t *key) {
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-static CYTHON_INLINE void PyThread_tss_delete(Py_tss_t *key) {
-  PyThread_delete_key(*key);
-  *key = Py_tss_NEEDS_INIT;
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-static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
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-static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
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-#if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
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-#define __Pyx_PyDict_GetItemStr(dict, name)  _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash)
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-  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
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-  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   PyUnicode_MAX_CHAR_VALUE(u)
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-  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
-  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
-  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, ch)
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-  #define PyUnicode_4BYTE_KIND  4
-  #define __Pyx_PyUnicode_READY(op)       (0)
-  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
-  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
-  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((sizeof(Py_UNICODE) == 2) ? 65535 : 1114111)
-  #define __Pyx_PyUnicode_KIND(u)         (sizeof(Py_UNICODE))
-  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
-  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
-  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  (((void)(k)), ((Py_UNICODE*)d)[i] = ch)
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-  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
-  #define PyNumber_Int                 PyNumber_Long
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-  #define PyBoolObject                 PyLongObject
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-  #ifndef PyUnicode_InternFromString
-    #define PyUnicode_InternFromString(s) PyUnicode_FromString(s)
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-  typedef long Py_hash_t;
-  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
-  #define __Pyx_PyInt_AsHash_t   PyInt_AsLong
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-  #define __Pyx_PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : (Py_INCREF(func), func))
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-  #define __Pyx_PyMethod_New(func, self, klass) PyMethod_New(func, self, klass)
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-  #if PY_VERSION_HEX >= 0x030500B1
-    #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods
-    #define __Pyx_PyType_AsAsync(obj) (Py_TYPE(obj)->tp_as_async)
-  #else
-    #define __Pyx_PyType_AsAsync(obj) ((__Pyx_PyAsyncMethodsStruct*) (Py_TYPE(obj)->tp_reserved))
-  #endif
-#else
-  #define __Pyx_PyType_AsAsync(obj) NULL
-#endif
-#ifndef __Pyx_PyAsyncMethodsStruct
-    typedef struct {
-        unaryfunc am_await;
-        unaryfunc am_aiter;
-        unaryfunc am_anext;
-    } __Pyx_PyAsyncMethodsStruct;
-#endif
-
-#if defined(WIN32) || defined(MS_WINDOWS)
-  #define _USE_MATH_DEFINES
-#endif
-#include <math.h>
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-#define __PYX_NAN() ((float) NAN)
-#else
-static CYTHON_INLINE float __PYX_NAN() {
-  float value;
-  memset(&value, 0xFF, sizeof(value));
-  return value;
-}
-#endif
-#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL)
-#define __Pyx_truncl trunc
-#else
-#define __Pyx_truncl truncl
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-
-
-#define __PYX_ERR(f_index, lineno, Ln_error) \
-{ \
-  __pyx_filename = __pyx_f[f_index]; __pyx_lineno = lineno; __pyx_clineno = __LINE__; goto Ln_error; \
-}
-
-#ifndef __PYX_EXTERN_C
-  #ifdef __cplusplus
-    #define __PYX_EXTERN_C extern "C"
-  #else
-    #define __PYX_EXTERN_C extern
-  #endif
-#endif
-
-#define __PYX_HAVE__spa_py
-#define __PYX_HAVE_API__spa_py
-/* Early includes */
-#include "spa.h"
-#ifdef _OPENMP
-#include <omp.h>
-#endif /* _OPENMP */
-
-#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)
-#define CYTHON_WITHOUT_ASSERTIONS
-#endif
-
-typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding;
-                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;
-
-#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
-#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT 0
-#define __PYX_DEFAULT_STRING_ENCODING ""
-#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
-#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
-#define __Pyx_uchar_cast(c) ((unsigned char)c)
-#define __Pyx_long_cast(x) ((long)x)
-#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (\
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-    (sizeof(type) > sizeof(Py_ssize_t) &&\
-          likely(v < (type)PY_SSIZE_T_MAX ||\
-                 v == (type)PY_SSIZE_T_MAX)  &&\
-          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\
-                                v == (type)PY_SSIZE_T_MIN)))  ||\
-    (sizeof(type) == sizeof(Py_ssize_t) &&\
-          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\
-                               v == (type)PY_SSIZE_T_MAX)))  )
-#if defined (__cplusplus) && __cplusplus >= 201103L
-    #include <cstdlib>
-    #define __Pyx_sst_abs(value) std::abs(value)
-#elif SIZEOF_INT >= SIZEOF_SIZE_T
-    #define __Pyx_sst_abs(value) abs(value)
-#elif SIZEOF_LONG >= SIZEOF_SIZE_T
-    #define __Pyx_sst_abs(value) labs(value)
-#elif defined (_MSC_VER)
-    #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value))
-#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-    #define __Pyx_sst_abs(value) llabs(value)
-#elif defined (__GNUC__)
-    #define __Pyx_sst_abs(value) __builtin_llabs(value)
-#else
-    #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
-#endif
-static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
-static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
-#define __Pyx_PyByteArray_FromString(s) PyByteArray_FromStringAndSize((const char*)s, strlen((const char*)s))
-#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
-#define __Pyx_PyBytes_FromString        PyBytes_FromString
-#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
-static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
-#if PY_MAJOR_VERSION < 3
-    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
-    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
-#else
-    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
-    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
-#endif
-#define __Pyx_PyBytes_AsWritableString(s)     ((char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsWritableSString(s)    ((signed char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsWritableUString(s)    ((unsigned char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
-#define __Pyx_PyObject_AsWritableString(s)    ((char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
-#define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
-#define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
-#define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
-#define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
-#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
-static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
-    const Py_UNICODE *u_end = u;
-    while (*u_end++) ;
-    return (size_t)(u_end - u - 1);
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-#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
-#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
-#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
-#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
-#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
-static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
-static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
-static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
-#define __Pyx_PySequence_Tuple(obj)\
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-static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
-static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
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-#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
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-#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
-#if PY_MAJOR_VERSION >= 3
-#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x))
-#else
-#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
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-static int __Pyx_sys_getdefaultencoding_not_ascii;
-static int __Pyx_init_sys_getdefaultencoding_params(void) {
-    PyObject* sys;
-    PyObject* default_encoding = NULL;
-    PyObject* ascii_chars_u = NULL;
-    PyObject* ascii_chars_b = NULL;
-    const char* default_encoding_c;
-    sys = PyImport_ImportModule("sys");
-    if (!sys) goto bad;
-    default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL);
-    Py_DECREF(sys);
-    if (!default_encoding) goto bad;
-    default_encoding_c = PyBytes_AsString(default_encoding);
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-        __Pyx_sys_getdefaultencoding_not_ascii = 0;
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-        __Pyx_sys_getdefaultencoding_not_ascii = 1;
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-                PyExc_ValueError,
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-        Py_DECREF(ascii_chars_b);
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-    Py_XDECREF(ascii_chars_b);
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-static int __Pyx_init_sys_getdefaultencoding_params(void) {
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-    PyObject* default_encoding = NULL;
-    char* default_encoding_c;
-    sys = PyImport_ImportModule("sys");
-    if (!sys) goto bad;
-    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
-    Py_DECREF(sys);
-    if (!default_encoding) goto bad;
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-    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c));
-    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
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-static PyObject *__pyx_m = NULL;
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-
-/* PyErrFetchRestore */
-#if CYTHON_FAST_THREAD_STATE
-static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    tmp_type = tstate->curexc_type;
-    tmp_value = tstate->curexc_value;
-    tmp_tb = tstate->curexc_traceback;
-    tstate->curexc_type = type;
-    tstate->curexc_value = value;
-    tstate->curexc_traceback = tb;
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-}
-static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    *type = tstate->curexc_type;
-    *value = tstate->curexc_value;
-    *tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-}
-#endif
-
-/* CLineInTraceback */
-#ifndef CYTHON_CLINE_IN_TRACEBACK
-static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_line) {
-    PyObject *use_cline;
-    PyObject *ptype, *pvalue, *ptraceback;
-#if CYTHON_COMPILING_IN_CPYTHON
-    PyObject **cython_runtime_dict;
-#endif
-    if (unlikely(!__pyx_cython_runtime)) {
-        return c_line;
-    }
-    __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
-#if CYTHON_COMPILING_IN_CPYTHON
-    cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
-    if (likely(cython_runtime_dict)) {
-      use_cline = __Pyx_PyDict_GetItemStr(*cython_runtime_dict, __pyx_n_s_cline_in_traceback);
-    } else
-#endif
-    {
-      PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback);
-      if (use_cline_obj) {
-        use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True;
-        Py_DECREF(use_cline_obj);
-      } else {
-        PyErr_Clear();
-        use_cline = NULL;
-      }
-    }
-    if (!use_cline) {
-        c_line = 0;
-        PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False);
-    }
-    else if (PyObject_Not(use_cline) != 0) {
-        c_line = 0;
-    }
-    __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
-    return c_line;
-}
-#endif
-
-/* CodeObjectCache */
-static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
-    int start = 0, mid = 0, end = count - 1;
-    if (end >= 0 && code_line > entries[end].code_line) {
-        return count;
-    }
-    while (start < end) {
-        mid = start + (end - start) / 2;
-        if (code_line < entries[mid].code_line) {
-            end = mid;
-        } else if (code_line > entries[mid].code_line) {
-             start = mid + 1;
-        } else {
-            return mid;
-        }
-    }
-    if (code_line <= entries[mid].code_line) {
-        return mid;
-    } else {
-        return mid + 1;
-    }
-}
-static PyCodeObject *__pyx_find_code_object(int code_line) {
-    PyCodeObject* code_object;
-    int pos;
-    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
-        return NULL;
-    }
-    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
-    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
-        return NULL;
-    }
-    code_object = __pyx_code_cache.entries[pos].code_object;
-    Py_INCREF(code_object);
-    return code_object;
-}
-static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
-    int pos, i;
-    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
-    if (unlikely(!code_line)) {
-        return;
-    }
-    if (unlikely(!entries)) {
-        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
-        if (likely(entries)) {
-            __pyx_code_cache.entries = entries;
-            __pyx_code_cache.max_count = 64;
-            __pyx_code_cache.count = 1;
-            entries[0].code_line = code_line;
-            entries[0].code_object = code_object;
-            Py_INCREF(code_object);
-        }
-        return;
-    }
-    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
-    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
-        PyCodeObject* tmp = entries[pos].code_object;
-        entries[pos].code_object = code_object;
-        Py_DECREF(tmp);
-        return;
-    }
-    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
-        int new_max = __pyx_code_cache.max_count + 64;
-        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
-            __pyx_code_cache.entries, (size_t)new_max*sizeof(__Pyx_CodeObjectCacheEntry));
-        if (unlikely(!entries)) {
-            return;
-        }
-        __pyx_code_cache.entries = entries;
-        __pyx_code_cache.max_count = new_max;
-    }
-    for (i=__pyx_code_cache.count; i>pos; i--) {
-        entries[i] = entries[i-1];
-    }
-    entries[pos].code_line = code_line;
-    entries[pos].code_object = code_object;
-    __pyx_code_cache.count++;
-    Py_INCREF(code_object);
-}
-
-/* AddTraceback */
-#include "compile.h"
-#include "frameobject.h"
-#include "traceback.h"
-static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
-            const char *funcname, int c_line,
-            int py_line, const char *filename) {
-    PyCodeObject *py_code = 0;
-    PyObject *py_srcfile = 0;
-    PyObject *py_funcname = 0;
-    #if PY_MAJOR_VERSION < 3
-    py_srcfile = PyString_FromString(filename);
-    #else
-    py_srcfile = PyUnicode_FromString(filename);
-    #endif
-    if (!py_srcfile) goto bad;
-    if (c_line) {
-        #if PY_MAJOR_VERSION < 3
-        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
-        #else
-        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
-        #endif
-    }
-    else {
-        #if PY_MAJOR_VERSION < 3
-        py_funcname = PyString_FromString(funcname);
-        #else
-        py_funcname = PyUnicode_FromString(funcname);
-        #endif
-    }
-    if (!py_funcname) goto bad;
-    py_code = __Pyx_PyCode_New(
-        0,
-        0,
-        0,
-        0,
-        0,
-        __pyx_empty_bytes, /*PyObject *code,*/
-        __pyx_empty_tuple, /*PyObject *consts,*/
-        __pyx_empty_tuple, /*PyObject *names,*/
-        __pyx_empty_tuple, /*PyObject *varnames,*/
-        __pyx_empty_tuple, /*PyObject *freevars,*/
-        __pyx_empty_tuple, /*PyObject *cellvars,*/
-        py_srcfile,   /*PyObject *filename,*/
-        py_funcname,  /*PyObject *name,*/
-        py_line,
-        __pyx_empty_bytes  /*PyObject *lnotab*/
-    );
-    Py_DECREF(py_srcfile);
-    Py_DECREF(py_funcname);
-    return py_code;
-bad:
-    Py_XDECREF(py_srcfile);
-    Py_XDECREF(py_funcname);
-    return NULL;
-}
-static void __Pyx_AddTraceback(const char *funcname, int c_line,
-                               int py_line, const char *filename) {
-    PyCodeObject *py_code = 0;
-    PyFrameObject *py_frame = 0;
-    PyThreadState *tstate = __Pyx_PyThreadState_Current;
-    if (c_line) {
-        c_line = __Pyx_CLineForTraceback(tstate, c_line);
-    }
-    py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
-    if (!py_code) {
-        py_code = __Pyx_CreateCodeObjectForTraceback(
-            funcname, c_line, py_line, filename);
-        if (!py_code) goto bad;
-        __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
-    }
-    py_frame = PyFrame_New(
-        tstate,            /*PyThreadState *tstate,*/
-        py_code,           /*PyCodeObject *code,*/
-        __pyx_d,    /*PyObject *globals,*/
-        0                  /*PyObject *locals*/
-    );
-    if (!py_frame) goto bad;
-    __Pyx_PyFrame_SetLineNumber(py_frame, py_line);
-    PyTraceBack_Here(py_frame);
-bad:
-    Py_XDECREF(py_code);
-    Py_XDECREF(py_frame);
-}
-
-/* CIntFromPyVerify */
-#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
-    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
-#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
-    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
-#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
-    {\
-        func_type value = func_value;\
-        if (sizeof(target_type) < sizeof(func_type)) {\
-            if (unlikely(value != (func_type) (target_type) value)) {\
-                func_type zero = 0;\
-                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
-                    return (target_type) -1;\
-                if (is_unsigned && unlikely(value < zero))\
-                    goto raise_neg_overflow;\
-                else\
-                    goto raise_overflow;\
-            }\
-        }\
-        return (target_type) value;\
-    }
-
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
-    const int neg_one = (int) -1, const_zero = (int) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(int) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(int) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(int) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(int),
-                                     little, !is_unsigned);
-    }
-}
-
-static PyObject* __pyx_convert__to_py_spa_data(spa_data s) {
-  PyObject* res;
-  PyObject* member;
-  res = __Pyx_PyDict_NewPresized(27); if (unlikely(!res)) return NULL;
-  member = __Pyx_PyInt_From_int(s.year); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_year, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.month); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_month, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.day); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_day, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.hour); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_hour, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.minute); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_minute, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.second); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_second, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.delta_ut1); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_delta_ut1, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.delta_t); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_delta_t, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.time_zone); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_time_zone, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.longitude); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_longitude, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.latitude); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_latitude, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.elevation); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_elevation, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.pressure); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_pressure, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.temperature); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_temperature, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.slope); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_slope, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azm_rotation); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azm_rotation, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.atmos_refract); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_atmos_refract, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = __Pyx_PyInt_From_int(s.function); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_function, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.e0); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_e0, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.e); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_e, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.zenith); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_zenith, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azimuth_astro); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azimuth_astro, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.azimuth); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_azimuth, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.incidence); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_incidence, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.suntransit); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_suntransit, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.sunrise); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_sunrise, member) < 0)) goto bad;
-  Py_DECREF(member);
-  member = PyFloat_FromDouble(s.sunset); if (unlikely(!member)) goto bad;
-  if (unlikely(PyDict_SetItem(res, __pyx_n_s_sunset, member) < 0)) goto bad;
-  Py_DECREF(member);
-  return res;
-  bad:
-  Py_XDECREF(member);
-  Py_DECREF(res);
-  return NULL;
-}
-/* CIntFromPy */
-static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
-    const int neg_one = (int) -1, const_zero = (int) 0;
-    const int is_unsigned = neg_one > const_zero;
-#if PY_MAJOR_VERSION < 3
-    if (likely(PyInt_Check(x))) {
-        if (sizeof(int) < sizeof(long)) {
-            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
-        } else {
-            long val = PyInt_AS_LONG(x);
-            if (is_unsigned && unlikely(val < 0)) {
-                goto raise_neg_overflow;
-            }
-            return (int) val;
-        }
-    } else
-#endif
-    if (likely(PyLong_Check(x))) {
-        if (is_unsigned) {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (int) 0;
-                case  1: __PYX_VERIFY_RETURN_INT(int, digit, digits[0])
-                case 2:
-                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 2 * PyLong_SHIFT) {
-                            return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 3 * PyLong_SHIFT) {
-                            return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) >= 4 * PyLong_SHIFT) {
-                            return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
-                        }
-                    }
-                    break;
-            }
-#endif
-#if CYTHON_COMPILING_IN_CPYTHON
-            if (unlikely(Py_SIZE(x) < 0)) {
-                goto raise_neg_overflow;
-            }
-#else
-            {
-                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
-                if (unlikely(result < 0))
-                    return (int) -1;
-                if (unlikely(result == 1))
-                    goto raise_neg_overflow;
-            }
-#endif
-            if (sizeof(int) <= sizeof(unsigned long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
-#endif
-            }
-        } else {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (int) 0;
-                case -1: __PYX_VERIFY_RETURN_INT(int, sdigit, (sdigit) (-(sdigit)digits[0]))
-                case  1: __PYX_VERIFY_RETURN_INT(int,  digit, +digits[0])
-                case -2:
-                    if (8 * sizeof(int) - 1 > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case 2:
-                    if (8 * sizeof(int) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                            return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case -3:
-                    if (8 * sizeof(int) - 1 > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(int) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                            return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case -4:
-                    if (8 * sizeof(int) - 1 > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
-                            return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(int) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(int) - 1 > 4 * PyLong_SHIFT) {
-                            return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
-                        }
-                    }
-                    break;
-            }
-#endif
-            if (sizeof(int) <= sizeof(long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
-#endif
-            }
-        }
-        {
-#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
-            PyErr_SetString(PyExc_RuntimeError,
-                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
-#else
-            int val;
-            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
- #if PY_MAJOR_VERSION < 3
-            if (likely(v) && !PyLong_Check(v)) {
-                PyObject *tmp = v;
-                v = PyNumber_Long(tmp);
-                Py_DECREF(tmp);
-            }
- #endif
-            if (likely(v)) {
-                int one = 1; int is_little = (int)*(unsigned char *)&one;
-                unsigned char *bytes = (unsigned char *)&val;
-                int ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                              bytes, sizeof(val),
-                                              is_little, !is_unsigned);
-                Py_DECREF(v);
-                if (likely(!ret))
-                    return val;
-            }
-#endif
-            return (int) -1;
-        }
-    } else {
-        int val;
-        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
-        if (!tmp) return (int) -1;
-        val = __Pyx_PyInt_As_int(tmp);
-        Py_DECREF(tmp);
-        return val;
-    }
-raise_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "value too large to convert to int");
-    return (int) -1;
-raise_neg_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "can't convert negative value to int");
-    return (int) -1;
-}
-
-/* CIntToPy */
-static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
-    const long neg_one = (long) -1, const_zero = (long) 0;
-    const int is_unsigned = neg_one > const_zero;
-    if (is_unsigned) {
-        if (sizeof(long) < sizeof(long)) {
-            return PyInt_FromLong((long) value);
-        } else if (sizeof(long) <= sizeof(unsigned long)) {
-            return PyLong_FromUnsignedLong((unsigned long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
-            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
-#endif
-        }
-    } else {
-        if (sizeof(long) <= sizeof(long)) {
-            return PyInt_FromLong((long) value);
-#ifdef HAVE_LONG_LONG
-        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
-            return PyLong_FromLongLong((PY_LONG_LONG) value);
-#endif
-        }
-    }
-    {
-        int one = 1; int little = (int)*(unsigned char *)&one;
-        unsigned char *bytes = (unsigned char *)&value;
-        return _PyLong_FromByteArray(bytes, sizeof(long),
-                                     little, !is_unsigned);
-    }
-}
-
-/* CIntFromPy */
-static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
-    const long neg_one = (long) -1, const_zero = (long) 0;
-    const int is_unsigned = neg_one > const_zero;
-#if PY_MAJOR_VERSION < 3
-    if (likely(PyInt_Check(x))) {
-        if (sizeof(long) < sizeof(long)) {
-            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
-        } else {
-            long val = PyInt_AS_LONG(x);
-            if (is_unsigned && unlikely(val < 0)) {
-                goto raise_neg_overflow;
-            }
-            return (long) val;
-        }
-    } else
-#endif
-    if (likely(PyLong_Check(x))) {
-        if (is_unsigned) {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (long) 0;
-                case  1: __PYX_VERIFY_RETURN_INT(long, digit, digits[0])
-                case 2:
-                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 2 * PyLong_SHIFT) {
-                            return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 3 * PyLong_SHIFT) {
-                            return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) >= 4 * PyLong_SHIFT) {
-                            return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
-                        }
-                    }
-                    break;
-            }
-#endif
-#if CYTHON_COMPILING_IN_CPYTHON
-            if (unlikely(Py_SIZE(x) < 0)) {
-                goto raise_neg_overflow;
-            }
-#else
-            {
-                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
-                if (unlikely(result < 0))
-                    return (long) -1;
-                if (unlikely(result == 1))
-                    goto raise_neg_overflow;
-            }
-#endif
-            if (sizeof(long) <= sizeof(unsigned long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
-#endif
-            }
-        } else {
-#if CYTHON_USE_PYLONG_INTERNALS
-            const digit* digits = ((PyLongObject*)x)->ob_digit;
-            switch (Py_SIZE(x)) {
-                case  0: return (long) 0;
-                case -1: __PYX_VERIFY_RETURN_INT(long, sdigit, (sdigit) (-(sdigit)digits[0]))
-                case  1: __PYX_VERIFY_RETURN_INT(long,  digit, +digits[0])
-                case -2:
-                    if (8 * sizeof(long) - 1 > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case 2:
-                    if (8 * sizeof(long) > 1 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                            return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case -3:
-                    if (8 * sizeof(long) - 1 > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case 3:
-                    if (8 * sizeof(long) > 2 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                            return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case -4:
-                    if (8 * sizeof(long) - 1 > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
-                            return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-                case 4:
-                    if (8 * sizeof(long) > 3 * PyLong_SHIFT) {
-                        if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT) {
-                            __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
-                        } else if (8 * sizeof(long) - 1 > 4 * PyLong_SHIFT) {
-                            return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
-                        }
-                    }
-                    break;
-            }
-#endif
-            if (sizeof(long) <= sizeof(long)) {
-                __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
-#ifdef HAVE_LONG_LONG
-            } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
-                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
-#endif
-            }
-        }
-        {
-#if CYTHON_COMPILING_IN_PYPY && !defined(_PyLong_AsByteArray)
-            PyErr_SetString(PyExc_RuntimeError,
-                            "_PyLong_AsByteArray() not available in PyPy, cannot convert large numbers");
-#else
-            long val;
-            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
- #if PY_MAJOR_VERSION < 3
-            if (likely(v) && !PyLong_Check(v)) {
-                PyObject *tmp = v;
-                v = PyNumber_Long(tmp);
-                Py_DECREF(tmp);
-            }
- #endif
-            if (likely(v)) {
-                int one = 1; int is_little = (int)*(unsigned char *)&one;
-                unsigned char *bytes = (unsigned char *)&val;
-                int ret = _PyLong_AsByteArray((PyLongObject *)v,
-                                              bytes, sizeof(val),
-                                              is_little, !is_unsigned);
-                Py_DECREF(v);
-                if (likely(!ret))
-                    return val;
-            }
-#endif
-            return (long) -1;
-        }
-    } else {
-        long val;
-        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
-        if (!tmp) return (long) -1;
-        val = __Pyx_PyInt_As_long(tmp);
-        Py_DECREF(tmp);
-        return val;
-    }
-raise_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "value too large to convert to long");
-    return (long) -1;
-raise_neg_overflow:
-    PyErr_SetString(PyExc_OverflowError,
-        "can't convert negative value to long");
-    return (long) -1;
-}
-
-/* FastTypeChecks */
-#if CYTHON_COMPILING_IN_CPYTHON
-static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
-    while (a) {
-        a = a->tp_base;
-        if (a == b)
-            return 1;
-    }
-    return b == &PyBaseObject_Type;
-}
-static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
-    PyObject *mro;
-    if (a == b) return 1;
-    mro = a->tp_mro;
-    if (likely(mro)) {
-        Py_ssize_t i, n;
-        n = PyTuple_GET_SIZE(mro);
-        for (i = 0; i < n; i++) {
-            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
-                return 1;
-        }
-        return 0;
-    }
-    return __Pyx_InBases(a, b);
-}
-#if PY_MAJOR_VERSION == 2
-static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
-    PyObject *exception, *value, *tb;
-    int res;
-    __Pyx_PyThreadState_declare
-    __Pyx_PyThreadState_assign
-    __Pyx_ErrFetch(&exception, &value, &tb);
-    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
-    if (unlikely(res == -1)) {
-        PyErr_WriteUnraisable(err);
-        res = 0;
-    }
-    if (!res) {
-        res = PyObject_IsSubclass(err, exc_type2);
-        if (unlikely(res == -1)) {
-            PyErr_WriteUnraisable(err);
-            res = 0;
-        }
-    }
-    __Pyx_ErrRestore(exception, value, tb);
-    return res;
-}
-#else
-static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
-    int res = exc_type1 ? __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type1) : 0;
-    if (!res) {
-        res = __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
-    }
-    return res;
-}
-#endif
-static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
-    Py_ssize_t i, n;
-    assert(PyExceptionClass_Check(exc_type));
-    n = PyTuple_GET_SIZE(tuple);
-#if PY_MAJOR_VERSION >= 3
-    for (i=0; i<n; i++) {
-        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
-    }
-#endif
-    for (i=0; i<n; i++) {
-        PyObject *t = PyTuple_GET_ITEM(tuple, i);
-        #if PY_MAJOR_VERSION < 3
-        if (likely(exc_type == t)) return 1;
-        #endif
-        if (likely(PyExceptionClass_Check(t))) {
-            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
-        } else {
-        }
-    }
-    return 0;
-}
-static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
-    if (likely(err == exc_type)) return 1;
-    if (likely(PyExceptionClass_Check(err))) {
-        if (likely(PyExceptionClass_Check(exc_type))) {
-            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
-        } else if (likely(PyTuple_Check(exc_type))) {
-            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
-        } else {
-        }
-    }
-    return PyErr_GivenExceptionMatches(err, exc_type);
-}
-static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
-    assert(PyExceptionClass_Check(exc_type1));
-    assert(PyExceptionClass_Check(exc_type2));
-    if (likely(err == exc_type1 || err == exc_type2)) return 1;
-    if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
-    }
-    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
-}
-#endif
-
-/* CheckBinaryVersion */
-static int __Pyx_check_binary_version(void) {
-    char ctversion[4], rtversion[4];
-    PyOS_snprintf(ctversion, 4, "%d.%d", PY_MAJOR_VERSION, PY_MINOR_VERSION);
-    PyOS_snprintf(rtversion, 4, "%s", Py_GetVersion());
-    if (ctversion[0] != rtversion[0] || ctversion[2] != rtversion[2]) {
-        char message[200];
-        PyOS_snprintf(message, sizeof(message),
-                      "compiletime version %s of module '%.100s' "
-                      "does not match runtime version %s",
-                      ctversion, __Pyx_MODULE_NAME, rtversion);
-        return PyErr_WarnEx(NULL, message, 1);
-    }
-    return 0;
-}
-
-/* InitStrings */
-static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
-    while (t->p) {
-        #if PY_MAJOR_VERSION < 3
-        if (t->is_unicode) {
-            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
-        } else if (t->intern) {
-            *t->p = PyString_InternFromString(t->s);
-        } else {
-            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
-        }
-        #else
-        if (t->is_unicode | t->is_str) {
-            if (t->intern) {
-                *t->p = PyUnicode_InternFromString(t->s);
-            } else if (t->encoding) {
-                *t->p = PyUnicode_Decode(t->s, t->n - 1, t->encoding, NULL);
-            } else {
-                *t->p = PyUnicode_FromStringAndSize(t->s, t->n - 1);
-            }
-        } else {
-            *t->p = PyBytes_FromStringAndSize(t->s, t->n - 1);
-        }
-        #endif
-        if (!*t->p)
-            return -1;
-        if (PyObject_Hash(*t->p) == -1)
-            return -1;
-        ++t;
-    }
-    return 0;
-}
-
-static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
-    return __Pyx_PyUnicode_FromStringAndSize(c_str, (Py_ssize_t)strlen(c_str));
-}
-static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
-    Py_ssize_t ignore;
-    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
-}
-#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
-#if !CYTHON_PEP393_ENABLED
-static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
-    char* defenc_c;
-    PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
-    if (!defenc) return NULL;
-    defenc_c = PyBytes_AS_STRING(defenc);
-#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-    {
-        char* end = defenc_c + PyBytes_GET_SIZE(defenc);
-        char* c;
-        for (c = defenc_c; c < end; c++) {
-            if ((unsigned char) (*c) >= 128) {
-                PyUnicode_AsASCIIString(o);
-                return NULL;
-            }
-        }
-    }
-#endif
-    *length = PyBytes_GET_SIZE(defenc);
-    return defenc_c;
-}
-#else
-static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
-    if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL;
-#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-    if (likely(PyUnicode_IS_ASCII(o))) {
-        *length = PyUnicode_GET_LENGTH(o);
-        return PyUnicode_AsUTF8(o);
-    } else {
-        PyUnicode_AsASCIIString(o);
-        return NULL;
-    }
-#else
-    return PyUnicode_AsUTF8AndSize(o, length);
-#endif
-}
-#endif
-#endif
-static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
-#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
-    if (
-#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
-            __Pyx_sys_getdefaultencoding_not_ascii &&
-#endif
-            PyUnicode_Check(o)) {
-        return __Pyx_PyUnicode_AsStringAndSize(o, length);
-    } else
-#endif
-#if (!CYTHON_COMPILING_IN_PYPY) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
-    if (PyByteArray_Check(o)) {
-        *length = PyByteArray_GET_SIZE(o);
-        return PyByteArray_AS_STRING(o);
-    } else
-#endif
-    {
-        char* result;
-        int r = PyBytes_AsStringAndSize(o, &result, length);
-        if (unlikely(r < 0)) {
-            return NULL;
-        } else {
-            return result;
-        }
-    }
-}
-static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
-   int is_true = x == Py_True;
-   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
-   else return PyObject_IsTrue(x);
-}
-static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
-#if PY_MAJOR_VERSION >= 3
-    if (PyLong_Check(result)) {
-        if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
-                "__int__ returned non-int (type %.200s).  "
-                "The ability to return an instance of a strict subclass of int "
-                "is deprecated, and may be removed in a future version of Python.",
-                Py_TYPE(result)->tp_name)) {
-            Py_DECREF(result);
-            return NULL;
-        }
-        return result;
-    }
-#endif
-    PyErr_Format(PyExc_TypeError,
-                 "__%.4s__ returned non-%.4s (type %.200s)",
-                 type_name, type_name, Py_TYPE(result)->tp_name);
-    Py_DECREF(result);
-    return NULL;
-}
-static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
-#if CYTHON_USE_TYPE_SLOTS
-  PyNumberMethods *m;
-#endif
-  const char *name = NULL;
-  PyObject *res = NULL;
-#if PY_MAJOR_VERSION < 3
-  if (likely(PyInt_Check(x) || PyLong_Check(x)))
-#else
-  if (likely(PyLong_Check(x)))
-#endif
-    return __Pyx_NewRef(x);
-#if CYTHON_USE_TYPE_SLOTS
-  m = Py_TYPE(x)->tp_as_number;
-  #if PY_MAJOR_VERSION < 3
-  if (m && m->nb_int) {
-    name = "int";
-    res = m->nb_int(x);
-  }
-  else if (m && m->nb_long) {
-    name = "long";
-    res = m->nb_long(x);
-  }
-  #else
-  if (likely(m && m->nb_int)) {
-    name = "int";
-    res = m->nb_int(x);
-  }
-  #endif
-#else
-  if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) {
-    res = PyNumber_Int(x);
-  }
-#endif
-  if (likely(res)) {
-#if PY_MAJOR_VERSION < 3
-    if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) {
-#else
-    if (unlikely(!PyLong_CheckExact(res))) {
-#endif
-        return __Pyx_PyNumber_IntOrLongWrongResultType(res, name);
-    }
-  }
-  else if (!PyErr_Occurred()) {
-    PyErr_SetString(PyExc_TypeError,
-                    "an integer is required");
-  }
-  return res;
-}
-static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
-  Py_ssize_t ival;
-  PyObject *x;
-#if PY_MAJOR_VERSION < 3
-  if (likely(PyInt_CheckExact(b))) {
-    if (sizeof(Py_ssize_t) >= sizeof(long))
-        return PyInt_AS_LONG(b);
-    else
-        return PyInt_AsSsize_t(x);
-  }
-#endif
-  if (likely(PyLong_CheckExact(b))) {
-    #if CYTHON_USE_PYLONG_INTERNALS
-    const digit* digits = ((PyLongObject*)b)->ob_digit;
-    const Py_ssize_t size = Py_SIZE(b);
-    if (likely(__Pyx_sst_abs(size) <= 1)) {
-        ival = likely(size) ? digits[0] : 0;
-        if (size == -1) ival = -ival;
-        return ival;
-    } else {
-      switch (size) {
-         case 2:
-           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
-             return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case -2:
-           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
-             return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case 3:
-           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
-             return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case -3:
-           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
-             return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case 4:
-           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
-             return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-         case -4:
-           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
-             return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
-           }
-           break;
-      }
-    }
-    #endif
-    return PyLong_AsSsize_t(b);
-  }
-  x = PyNumber_Index(b);
-  if (!x) return -1;
-  ival = PyInt_AsSsize_t(x);
-  Py_DECREF(x);
-  return ival;
-}
-static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
-  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
-}
-static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
-    return PyInt_FromSize_t(ival);
-}
-
-
-#endif /* Py_PYTHON_H */
diff --git a/setup.py b/setup.py
index f37f872230..055ed77a21 100755
--- a/setup.py
+++ b/setup.py
@@ -44,7 +44,8 @@
                     ]
 TESTS_REQUIRE = ['pytest', 'pytest-cov', 'pytest-mock', 'nose']
 EXTRAS_REQUIRE = {
-    'optional': ['scipy', 'tables', 'numba', 'siphon', 'netcdf4', 'ephem'],
+    'optional': ['scipy', 'tables', 'numba', 'siphon', 'netcdf4',
+                 'ephem', 'cython'],
     'doc': ['sphinx', 'ipython', 'sphinx_rtd_theme', 'numpydoc',
             'matplotlib'],
     'test': TESTS_REQUIRE

From 8298871cfcc8a7e0ee84de0e4c62a25ad8611f6f Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Thu, 13 Sep 2018 09:27:13 -0700
Subject: [PATCH 11/16] remove autodownload, revert readme

---
 pvlib/spa_c_files/README.md | 35 +++++++++++++++++------------------
 pvlib/spa_c_files/setup.py  | 30 ++++++++----------------------
 2 files changed, 25 insertions(+), 40 deletions(-)

diff --git a/pvlib/spa_c_files/README.md b/pvlib/spa_c_files/README.md
index 3317f6a1ad..cdc3c6529a 100644
--- a/pvlib/spa_c_files/README.md
+++ b/pvlib/spa_c_files/README.md
@@ -4,29 +4,33 @@ README
 NREL provides a C implementation of the solar position algorithm described in
 [Reda, I.; Andreas, A. (2003). Solar Position Algorithm for Solar Radiation Applications. 55 pp.; NREL Report No. TP-560-34302](http://www.nrel.gov/docs/fy08osti/34302.pdf).
 
-This folder contains the files required to make NREL's C code accessible
-to the ``pvlib-python`` package. We use the Cython package to wrap NREL's SPA 
+This folder contains the files required to make SPA C code accessible
+to the `pvlib-python` package. We use the Cython package to wrap the NREL SPA 
 implementation. 
 
-** Due to licensing issues, the [SPA C files](https://midcdmz.nrel.gov/spa/) can
-_not_ be included in the pvlib-python distribution. The SPA C files will be
-downloaded when you build the Python extension. By using this module you agree
-to the NREL license in SPA_NOTICE. **
+** Due to licensing issues, the SPA C files can _not_ be distributed with
+`pvlib-python`. You must download the SPA C files from the
+[NREL website](https://midcdmz.nrel.gov/spa/). **
+
+Download the `spa.c` and `spa.h` files from NREL,  and copy them into the
+`pvlib/spa_c_files` directory. The SPA C files will be patched to avoid
+[Python bug 24643](https://bugs.python.org/issue24643) when the extension is
+built.
 
 There are a total of 5 files needed to compile the C code, described below:
 
-* ``spa.c``: original C code from NREL 
-* ``spa.h``: header file for spa.c
-* ``cspa_py.pxd``: a cython header file which essentially tells cython which
+* `spa.c`: original C code from NREL 
+* `spa.h`: header file for spa.c
+* `cspa_py.pxd`: a cython header file which essentially tells cython which
   parts of the main header file to pay attention to
-* ``spa_py.pyx``: the cython code used to define both functions in the python
+* `spa_py.pyx`: the cython code used to define both functions in the python
   namespace. NOTE: It is possible to provide user access to other paramters of
   the SPA algorithm through modifying this file 
-* ``setup.py``: a distutils file which performs the compiling of the cython code
+* `setup.py`: a distutils file which performs the compiling of the cython code
 
 The cython compilation process produces two files:
-* ``spa_py.c``: an intermediate cython c file
-* ``spa_py.so`` or ``spa_py.<cpyver-platform>.pyd``: the python module which
+* `spa_py.c`: an intermediate cython c file
+* `spa_py.so` or `spa_py.<cpyver-plat>.pyd`: the python module which
   can be imported into a namespace
 
 To create the SPA Python extension, use the following shell command inside this
@@ -34,11 +38,6 @@ folder:
 
     $ python setup.py build_ext --inplace
 
-Executing the build command will also download the ``spa.c`` and ``spa.h``
-files from NREL and copy them into the ``pvlib/spa_c_files`` directory.
-
-This build process may not be not compatible with Python-2.7.
-
 There are four optional keyword arguments `delta_ut1=0`, `slope=30.0`,
 `azm_rotation=-10`, `atmos_refract` that effect four optional return values
 `incidence`, `suntransit`, `sunrise`, and `sunset`. If not given, the defaults
diff --git a/pvlib/spa_c_files/setup.py b/pvlib/spa_c_files/setup.py
index f0279b6450..4c89830282 100644
--- a/pvlib/spa_c_files/setup.py
+++ b/pvlib/spa_c_files/setup.py
@@ -1,42 +1,28 @@
 # setup.py
 
 import os
-from urllib import request, parse
 from distutils.core import setup
 from distutils.extension import Extension
 from Cython.Build import cythonize
 
 DIRNAME = os.path.dirname(__file__)
-SPA_C_URL = r'https://midcdmz.nrel.gov/apps/download.pl'
-SPA_H_URL = r'https://midcdmz.nrel.gov/spa/spa.h'
-VALUES = {'software': 'SPA'}
-LICENSE = 'SPA_NOTICE.md'
 
-with open(os.path.join(DIRNAME, LICENSE)) as f:
-    print(f.read())
-
-print('\nEnter the following information to accept the NREL LICENSE ...\n')
-VALUES['name'] = input('Name: ')
-VALUES['company'] = input('Company (or enter "Individual"): ')
-VALUES['country'] = input('Country: ')
-VALUES['email'] = input('Email (optional): ')
-DATA = parse.urlencode(VALUES).encode('ascii')
-
-# get spa.c
-REQ = request.Request(SPA_C_URL, DATA)
-with request.urlopen(REQ) as response:
-    SPA_C = response.read()
+# patch spa.c
+with open(os.path.join(DIRNAME, 'spa.c'), 'rb') as f:
+    SPA_C = f.read()
 # replace timezone with time_zone to avoid a nameclash the function
 # __timezone which is defined by a MACRO in pyconfig.h as timezone
+# see https://bugs.python.org/issue24643
 SPA_C = SPA_C.replace(b'timezone', b'time_zone')
 with open(os.path.join(DIRNAME, 'spa.c'), 'wb') as f:
     f.write(SPA_C)
 
-# get spa.h
-with request.urlopen(SPA_H_URL) as response:
-    SPA_H = response.read()
+# patch spa.h
+with open(os.path.join(DIRNAME, 'spa.h'), 'rb') as f:
+    SPA_H = f.read()
 # replace timezone with time_zone to avoid a nameclash the function
 # __timezone which is defined by a MACRO in pyconfig.h as timezone
+# see https://bugs.python.org/issue24643
 SPA_H = SPA_H.replace(b'timezone', b'time_zone')
 with open(os.path.join(DIRNAME, 'spa.h'), 'wb') as f:
     f.write(SPA_H)

From 44c2037592ad5acda97a4f2a7f50dd46bc3bb39c Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Fri, 14 Sep 2018 12:06:14 -0700
Subject: [PATCH 12/16] with the function

---
 pvlib/spa_c_files/setup.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pvlib/spa_c_files/setup.py b/pvlib/spa_c_files/setup.py
index 4c89830282..65f43597ed 100644
--- a/pvlib/spa_c_files/setup.py
+++ b/pvlib/spa_c_files/setup.py
@@ -10,7 +10,7 @@
 # patch spa.c
 with open(os.path.join(DIRNAME, 'spa.c'), 'rb') as f:
     SPA_C = f.read()
-# replace timezone with time_zone to avoid a nameclash the function
+# replace timezone with time_zone to avoid nameclash with the function
 # __timezone which is defined by a MACRO in pyconfig.h as timezone
 # see https://bugs.python.org/issue24643
 SPA_C = SPA_C.replace(b'timezone', b'time_zone')
@@ -20,7 +20,7 @@
 # patch spa.h
 with open(os.path.join(DIRNAME, 'spa.h'), 'rb') as f:
     SPA_H = f.read()
-# replace timezone with time_zone to avoid a nameclash the function
+# replace timezone with time_zone to avoid nameclash with the function
 # __timezone which is defined by a MACRO in pyconfig.h as timezone
 # see https://bugs.python.org/issue24643
 SPA_H = SPA_H.replace(b'timezone', b'time_zone')

From e33c8f346745b8badeed3c576a68fd1670a6fb7b Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Fri, 14 Sep 2018 12:26:16 -0700
Subject: [PATCH 13/16] respond to comments

* explain that timezone is replaced with time_zone in spa_c docstring to avoid nameclash due to Python bug 24643
* explain why time_zone column renamed to timezone to match caller API
---
 pvlib/solarposition.py | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pvlib/solarposition.py b/pvlib/solarposition.py
index b825e6d876..6494d67e96 100644
--- a/pvlib/solarposition.py
+++ b/pvlib/solarposition.py
@@ -159,7 +159,12 @@ def spa_c(time, latitude, longitude, pressure=101325, altitude=0,
 
     References
     ----------
-    NREL SPA code: http://rredc.nrel.gov/solar/codesandalgorithms/spa/
+    NREL SPA reference: http://rredc.nrel.gov/solar/codesandalgorithms/spa/
+    NREL SPA C files: https://midcdmz.nrel.gov/spa/
+
+    Note: The ``timezone`` field in the SPA C files is replaced with ``time_zone``
+    to avoid a nameclash with the function ``__timezone`` that is redefined by
+    Python-3.5. This issue is `Python bug 24643 <https://bugs.python.org/issue24643>`_.
 
     USNO delta T:
     http://www.usno.navy.mil/USNO/earth-orientation/eo-products/long-term
@@ -206,6 +211,8 @@ def spa_c(time, latitude, longitude, pressure=101325, altitude=0,
     spa_df = pd.DataFrame(spa_out, index=time)
 
     if raw_spa_output:
+        # rename "time_zone" from raw output from spa_c_files.spa_py.spa_calc()
+        # to "timezone" to match the API of pvlib.solarposition.spa_c()
         return spa_df.rename(columns={'time_zone': 'timezone'})
     else:
         dfout = pd.DataFrame({'azimuth': spa_df['azimuth'],

From 83e5e5ded192f67b6e05bd71b6f54d095c7e04f0 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Fri, 14 Sep 2018 12:31:53 -0700
Subject: [PATCH 14/16] Copy the comment from solarposition.py

* that explains that we replace timezone with time_zone at build
---
 pvlib/spa_c_files/README.md | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pvlib/spa_c_files/README.md b/pvlib/spa_c_files/README.md
index cdc3c6529a..472fc4b8f8 100644
--- a/pvlib/spa_c_files/README.md
+++ b/pvlib/spa_c_files/README.md
@@ -13,9 +13,10 @@ implementation.
 [NREL website](https://midcdmz.nrel.gov/spa/). **
 
 Download the `spa.c` and `spa.h` files from NREL,  and copy them into the
-`pvlib/spa_c_files` directory. The SPA C files will be patched to avoid
-[Python bug 24643](https://bugs.python.org/issue24643) when the extension is
-built.
+`pvlib/spa_c_files` directory. When the extension is built, the ``timezone``
+field in the SPA C files is replaced with `time_zone` to avoid a nameclash
+with the function `__timezone` that is redefined by Python>=3.5. This issue
+is [Python bug 24643](https://bugs.python.org/issue24643).
 
 There are a total of 5 files needed to compile the C code, described below:
 

From 3bde11326dac78e0ecb20a29fd8494efccf2bb0d Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Fri, 14 Sep 2018 12:33:38 -0700
Subject: [PATCH 15/16] Python>=3.5

---
 pvlib/solarposition.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pvlib/solarposition.py b/pvlib/solarposition.py
index 6494d67e96..0fd7abd864 100644
--- a/pvlib/solarposition.py
+++ b/pvlib/solarposition.py
@@ -164,7 +164,7 @@ def spa_c(time, latitude, longitude, pressure=101325, altitude=0,
 
     Note: The ``timezone`` field in the SPA C files is replaced with ``time_zone``
     to avoid a nameclash with the function ``__timezone`` that is redefined by
-    Python-3.5. This issue is `Python bug 24643 <https://bugs.python.org/issue24643>`_.
+    Python>=3.5. This issue is `Python bug 24643 <https://bugs.python.org/issue24643>`_.
 
     USNO delta T:
     http://www.usno.navy.mil/USNO/earth-orientation/eo-products/long-term

From fcf5ca4c44a7347d48ab01f693d22870b5ed2e68 Mon Sep 17 00:00:00 2001
From: Mark Mikofski <bwana.marko@yahoo.com>
Date: Fri, 14 Sep 2018 12:38:16 -0700
Subject: [PATCH 16/16] wrap long lines

---
 pvlib/solarposition.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pvlib/solarposition.py b/pvlib/solarposition.py
index 0fd7abd864..9806d30eb8 100644
--- a/pvlib/solarposition.py
+++ b/pvlib/solarposition.py
@@ -162,9 +162,10 @@ def spa_c(time, latitude, longitude, pressure=101325, altitude=0,
     NREL SPA reference: http://rredc.nrel.gov/solar/codesandalgorithms/spa/
     NREL SPA C files: https://midcdmz.nrel.gov/spa/
 
-    Note: The ``timezone`` field in the SPA C files is replaced with ``time_zone``
-    to avoid a nameclash with the function ``__timezone`` that is redefined by
-    Python>=3.5. This issue is `Python bug 24643 <https://bugs.python.org/issue24643>`_.
+    Note: The ``timezone`` field in the SPA C files is replaced with
+    ``time_zone`` to avoid a nameclash with the function ``__timezone`` that is
+    redefined by Python>=3.5. This issue is
+    `Python bug 24643 <https://bugs.python.org/issue24643>`_.
 
     USNO delta T:
     http://www.usno.navy.mil/USNO/earth-orientation/eo-products/long-term