Add portability #defines PyLong_FromLong, PyUnicode_FromString

Patric Schmitz · Benno Evers · commit d42a969cc109 · 2019-03-12T13:57:02.000+01:00
diff --git a/matplotlibcpp.h b/matplotlibcpp.h
@@ -18,6 +18,8 @@
 
 #if PY_MAJOR_VERSION >= 3
 #  define PyString_FromString PyUnicode_FromString
+#  define PyInt_FromLong PyLong_FromLong
+#  define PyString_FromString PyUnicode_FromString
 #endif
 
 
