Implement PEP 3121: new module initialization and finalization API.

Include/import.h

@@ -33,17 +33,17 @@ PyAPI_FUNC(int) _PyImport_IsScript(struct filedescr *);
 PyAPI_FUNC(void) _PyImport_ReInitLock(void);
 
 PyAPI_FUNC(PyObject *)_PyImport_FindExtension(char *, char *);
-PyAPI_FUNC(PyObject *)_PyImport_FixupExtension(char *, char *);
+PyAPI_FUNC(int)_PyImport_FixupExtension(PyObject*, char *, char *);
 
 struct _inittab {
     char *name;
-    void (*initfunc)(void);
+    PyObject* (*initfunc)(void);
 };
 
 PyAPI_DATA(PyTypeObject) PyNullImporter_Type;
 PyAPI_DATA(struct _inittab *) PyImport_Inittab;
 
-PyAPI_FUNC(int) PyImport_AppendInittab(char *name, void (*initfunc)(void));
+PyAPI_FUNC(int) PyImport_AppendInittab(char *name, PyObject* (*initfunc)(void));
 PyAPI_FUNC(int) PyImport_ExtendInittab(struct _inittab *newtab);
 
 struct _frozen {

Include/modsupport.h

@@ -89,42 +89,18 @@ PyAPI_FUNC(int) PyModule_AddStringConstant(PyObject *, const char *, const char
    9-Jan-1995	GvR	Initial version (incompatible with older API)
 */
 
-#ifdef MS_WINDOWS
-/* Special defines for Windows versions used to live here.  Things
-   have changed, and the "Version" is now in a global string variable.
-   Reason for this is that this for easier branding of a "custom DLL"
-   without actually needing a recompile.  */
-#endif /* MS_WINDOWS */
-
-#if SIZEOF_SIZE_T != SIZEOF_INT
-/* On a 64-bit system, rename the Py_InitModule4 so that 2.4
-   modules cannot get loaded into a 2.5 interpreter */
-#define Py_InitModule4 Py_InitModule4_64
-#endif
-
 #ifdef Py_TRACE_REFS
- /* When we are tracing reference counts, rename Py_InitModule4 so
+ /* When we are tracing reference counts, rename PyModule_New2 so
     modules compiled with incompatible settings will generate a
     link-time error. */
- #if SIZEOF_SIZE_T != SIZEOF_INT
- #undef Py_InitModule4
- #define Py_InitModule4 Py_InitModule4TraceRefs_64
- #else
- #define Py_InitModule4 Py_InitModule4TraceRefs
- #endif
+ #define PyModule_New2 PyModule_Create2TraceRefs
 #endif
 
-PyAPI_FUNC(PyObject *) Py_InitModule4(const char *name, PyMethodDef *methods,
-                                      const char *doc, PyObject *self,
-                                      int apiver);
+PyAPI_FUNC(PyObject *) PyModule_Create2(struct PyModuleDef*,
+                                     int apiver);
 
-#define Py_InitModule(name, methods) \
-	Py_InitModule4(name, methods, (char *)NULL, (PyObject *)NULL, \
-		       PYTHON_API_VERSION)
-
-#define Py_InitModule3(name, methods, doc) \
-	Py_InitModule4(name, methods, doc, (PyObject *)NULL, \
-		       PYTHON_API_VERSION)
+#define PyModule_Create(module) \
+	PyModule_Create2(module, PYTHON_API_VERSION)
 
 PyAPI_DATA(char *) _Py_PackageContext;
 

Include/moduleobject.h

@@ -17,6 +17,30 @@ PyAPI_FUNC(PyObject *) PyModule_GetDict(PyObject *);
 PyAPI_FUNC(const char *) PyModule_GetName(PyObject *);
 PyAPI_FUNC(const char *) PyModule_GetFilename(PyObject *);
 PyAPI_FUNC(void) _PyModule_Clear(PyObject *);
+PyAPI_FUNC(struct PyModuleDef*) PyModule_GetDef(PyObject*);
+PyAPI_FUNC(void*) PyModule_GetState(PyObject*);
+
+typedef struct PyModuleDef_Base {
+  PyObject_HEAD
+  PyObject* (*m_init)(void);
+  Py_ssize_t m_index;
+  PyObject* m_copy;
+} PyModuleDef_Base;
+
+#define PyModuleDef_HEAD_INIT {PyObject_HEAD_INIT(NULL)}
+
+typedef struct PyModuleDef{
+  PyModuleDef_Base m_base;
+  const char* m_name;
+  const char* m_doc;
+  Py_ssize_t m_size;
+  PyMethodDef *m_methods;
+  inquiry m_reload;
+  traverseproc m_traverse;
+  inquiry m_clear;
+  freefunc m_free;
+}PyModuleDef;
+
 
 #ifdef __cplusplus
 }

Include/pyport.h

@@ -511,9 +511,9 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *);
 			/* module init functions inside the core need no external linkage */
 			/* except for Cygwin to handle embedding */
 #			if defined(__CYGWIN__)
-#				define PyMODINIT_FUNC __declspec(dllexport) void
+#				define PyMODINIT_FUNC __declspec(dllexport) PyObject*
 #			else /* __CYGWIN__ */
-#				define PyMODINIT_FUNC void
+#				define PyMODINIT_FUNC PyObject*
 #			endif /* __CYGWIN__ */
 #		else /* Py_BUILD_CORE */
 			/* Building an extension module, or an embedded situation */
@@ -526,9 +526,9 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *);
 #			define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE
 			/* module init functions outside the core must be exported */
 #			if defined(__cplusplus)
-#				define PyMODINIT_FUNC extern "C" __declspec(dllexport) void
+#				define PyMODINIT_FUNC extern "C" __declspec(dllexport) PyObject*
 #			else /* __cplusplus */
-#				define PyMODINIT_FUNC __declspec(dllexport) void
+#				define PyMODINIT_FUNC __declspec(dllexport) PyObject*
 #			endif /* __cplusplus */
 #		endif /* Py_BUILD_CORE */
 #	endif /* HAVE_DECLSPEC */
@@ -543,9 +543,9 @@ extern pid_t forkpty(int *, char *, struct termios *, struct winsize *);
 #endif
 #ifndef PyMODINIT_FUNC
 #	if defined(__cplusplus)
-#		define PyMODINIT_FUNC extern "C" void
+#		define PyMODINIT_FUNC extern "C" PyObject*
 #	else /* __cplusplus */
-#		define PyMODINIT_FUNC void
+#		define PyMODINIT_FUNC PyObject*
 #	endif /* __cplusplus */
 #endif
 

Include/pystate.h

@@ -19,6 +19,7 @@ typedef struct _is {
     struct _ts *tstate_head;
 
     PyObject *modules;
+    PyObject *modules_by_index;
     PyObject *sysdict;
     PyObject *builtins;
     PyObject *modules_reloading;
@@ -107,6 +108,8 @@ typedef struct _ts {
 PyAPI_FUNC(PyInterpreterState *) PyInterpreterState_New(void);
 PyAPI_FUNC(void) PyInterpreterState_Clear(PyInterpreterState *);
 PyAPI_FUNC(void) PyInterpreterState_Delete(PyInterpreterState *);
+PyAPI_FUNC(int) _PyState_AddModule(PyObject*, struct PyModuleDef*);
+PyAPI_FUNC(PyObject*) PyState_FindModule(struct PyModuleDef*);
 
 PyAPI_FUNC(PyThreadState *) PyThreadState_New(PyInterpreterState *);
 PyAPI_FUNC(void) PyThreadState_Clear(PyThreadState *);

Include/warnings.h

@@ -4,7 +4,7 @@
 extern "C" {
 #endif
 
-PyAPI_FUNC(void) _PyWarnings_Init(void);
+PyAPI_FUNC(PyObject*) _PyWarnings_Init(void);
 
 PyAPI_FUNC(int) PyErr_WarnEx(PyObject *, const char *, Py_ssize_t);
 PyAPI_FUNC(int) PyErr_WarnExplicit(PyObject *, const char *, const char *, int,