bpo-37414: Remove sys.callstats() (GH-14398)

vstinner · web-flow · commit 69150669f224 · 2019-06-26T18:01:10.000+02:00
Remove the undocumented sys.callstats() function. Since Python 3.7,
it was deprecated and always returned None. It required a special
build option CALL_PROFILE which was already removed in Python 3.7.
diff --git a/Doc/whatsnew/3.9.rst b/Doc/whatsnew/3.9.rst
@@ -139,6 +139,11 @@ Deprecated
 Removed
 =======
 
+* The undocumented ``sys.callstats()`` function has been removed. Since Python
+  3.7, it was deprecated and always returned ``None``. It required a special
+  build option ``CALL_PROFILE`` which was already removed in Python 3.7.
+  (Contributed by Victor Stinner in :issue:`37414`.)
+
 * The ``sys.getcheckinterval()`` and ``sys.setcheckinterval()`` functions have
   been removed. They were deprecated since Python 3.2. Use
   :func:`sys.getswitchinterval` and :func:`sys.setswitchinterval` instead.
diff --git a/Misc/NEWS.d/next/Core and Builtins/2019-06-26-17-27-26.bpo-37414.o6Lnbc.rst b/Misc/NEWS.d/next/Core and Builtins/2019-06-26-17-27-26.bpo-37414.o6Lnbc.rst
@@ -0,0 +1,3 @@
+The undocumented ``sys.callstats()`` function has been removed. Since Python
+3.7, it was deprecated and always returned ``None``. It required a special
+build option ``CALL_PROFILE`` which was already removed in Python 3.7.
diff --git a/Python/clinic/sysmodule.c.h b/Python/clinic/sysmodule.c.h
diff --git a/Python/sysmodule.c b/Python/sysmodule.c
@@ -1779,44 +1779,6 @@ sys_call_tracing_impl(PyObject *module, PyObject *func, PyObject *funcargs)
     return _PyEval_CallTracing(func, funcargs);
 }
 
-/*[clinic input]
-sys.callstats
-
-Return a tuple of function call statistics.
-
-A tuple is returned only if CALL_PROFILE was defined when Python was
-built.  Otherwise, this returns None.
-
-When enabled, this function returns detailed, implementation-specific
-details about the number of function calls executed. The return value
-is a 11-tuple where the entries in the tuple are counts of:
-0. all function calls
-1. calls to PyFunction_Type objects
-2. PyFunction calls that do not create an argument tuple
-3. PyFunction calls that do not create an argument tuple
-   and bypass PyEval_EvalCodeEx()
-4. PyMethod calls
-5. PyMethod calls on bound methods
-6. PyType calls
-7. PyCFunction calls
-8. generator calls
-9. All other calls
-10. Number of stack pops performed by call_function()
-[clinic start generated code]*/
-
-static PyObject *
-sys_callstats_impl(PyObject *module)
-/*[clinic end generated code: output=edc4a74957fa8def input=d447d8d224d5d175]*/
-{
-    if (PyErr_WarnEx(PyExc_DeprecationWarning,
-                      "sys.callstats() has been deprecated in Python 3.7 "
-                      "and will be removed in the future", 1) < 0) {
-        return NULL;
-    }
-
-    Py_RETURN_NONE;
-}
-
 
 #ifdef __cplusplus
 extern "C" {
@@ -1910,7 +1872,6 @@ static PyMethodDef sys_methods[] = {
     {"audit",           (PyCFunction)(void(*)(void))sys_audit, METH_FASTCALL, audit_doc },
     {"breakpointhook",  (PyCFunction)(void(*)(void))sys_breakpointhook,
      METH_FASTCALL | METH_KEYWORDS, breakpointhook_doc},
-    SYS_CALLSTATS_METHODDEF
     SYS__CLEAR_TYPE_CACHE_METHODDEF
     SYS__CURRENT_FRAMES_METHODDEF
     SYS_DISPLAYHOOK_METHODDEF

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	+The undocumented ``sys.callstats()`` function has been removed. Since Python
	`2`	+3.7, it was deprecated and always returned ``None``. It required a special
	`3`	+build option ``CALL_PROFILE`` which was already removed in Python 3.7.