gh-154757: No longer deprecate PyModule_GetFilename() (#158076)

Author: vstinner

Doc/c-api/module.rst

@@ -128,9 +128,8 @@ Module Objects
    The returned buffer is only valid until the module's :py:attr:`~module.__file__` attribute
    is reassigned or the module is destroyed.
 
-   .. deprecated:: 3.2
-      :c:func:`PyModule_GetFilename` raises :exc:`UnicodeEncodeError` on
-      unencodable filenames, use :c:func:`PyModule_GetFilenameObject` instead.
+   :c:func:`PyModule_GetFilename` raises :exc:`UnicodeEncodeError` on
+   unencodable filenames, use :c:func:`PyModule_GetFilenameObject` instead.
 
 
 .. _c_module_slots:

Doc/deprecations/c-api-pending-removal-in-future.rst

@@ -12,8 +12,6 @@ although there is currently no date scheduled for their removal.
   Use :c:func:`PyErr_GetRaisedException` instead.
 * :c:func:`PyErr_Restore`:
   Use :c:func:`PyErr_SetRaisedException` instead.
-* :c:func:`PyModule_GetFilename`:
-  Use :c:func:`PyModule_GetFilenameObject` instead.
 * :c:func:`PyOS_AfterFork`:
   Use :c:func:`PyOS_AfterFork_Child` instead.
 * :c:func:`PySlice_GetIndicesEx`:

Doc/whatsnew/3.16.rst

@@ -1128,6 +1128,10 @@ Deprecated C APIs
   and :c:func:`PyAsyncGen_New` are deprecated.
   They are scheduled for removal in 3.18.
 
+* :c:func:`PyModule_GetFilename` is no longer deprecated, but using
+  :c:func:`PyModule_GetFilenameObject` instead is still recommended.
+  (Contributed by Victor Stinner in :gh:`154757`.)
+
 .. Add C API deprecations above alphabetically, not here at the end.
 
 .. include:: ../deprecations/c-api-pending-removal-in-3.18.rst

Include/moduleobject.h

@@ -25,7 +25,7 @@ PyAPI_FUNC(PyObject *) PyModule_GetDict(PyObject *);
 PyAPI_FUNC(PyObject *) PyModule_GetNameObject(PyObject *);
 #endif
 PyAPI_FUNC(const char *) PyModule_GetName(PyObject *);
-Py_DEPRECATED(3.2) PyAPI_FUNC(const char *) PyModule_GetFilename(PyObject *);
+PyAPI_FUNC(const char *) PyModule_GetFilename(PyObject *);
 PyAPI_FUNC(PyObject *) PyModule_GetFilenameObject(PyObject *);
 PyAPI_FUNC(PyModuleDef*) PyModule_GetDef(PyObject*);
 PyAPI_FUNC(void*) PyModule_GetState(PyObject*);

Misc/NEWS.d/next/C_API/2026-09-24-14-14-34.gh-issue-154757.-b-Fs7.rst

@@ -0,0 +1,3 @@
+:c:func:`PyModule_GetFilename` is no longer deprecated, but using
+:c:func:`PyModule_GetFilenameObject` instead is still recommended. Patch by
+Victor Stinner.