Issue #18203: Fix Py_Finalize(): destroy the GIL after the last call to
PyMem_Malloc() or PyObject_Malloc().
For example, PyCFunction_Fini() calls PyObject_GC_Del() which calls
PyObject_FREE().
diff --git a/Python/pythonrun.c b/Python/pythonrun.c
index 02a4329..94175be 100644
--- a/Python/pythonrun.c
+++ b/Python/pythonrun.c
@@ -606,11 +606,6 @@
_PyExc_Fini();
- /* Cleanup auto-thread-state */
-#ifdef WITH_THREAD
- _PyGILState_Fini();
-#endif /* WITH_THREAD */
-
/* Sundry finalizers */
PyMethod_Fini();
PyFrame_Fini();
@@ -629,10 +624,6 @@
/* Cleanup Unicode implementation */
_PyUnicode_Fini();
- /* Delete current thread. After this, many C API calls become crashy. */
- PyThreadState_Swap(NULL);
- PyInterpreterState_Delete(interp);
-
/* reset file system default encoding */
if (!Py_HasFileSystemDefaultEncoding && Py_FileSystemDefaultEncoding) {
free((char*)Py_FileSystemDefaultEncoding);
@@ -647,6 +638,15 @@
PyGrammar_RemoveAccelerators(&_PyParser_Grammar);
+ /* Cleanup auto-thread-state */
+#ifdef WITH_THREAD
+ _PyGILState_Fini();
+#endif /* WITH_THREAD */
+
+ /* Delete current thread. After this, many C API calls become crashy. */
+ PyThreadState_Swap(NULL);
+ PyInterpreterState_Delete(interp);
+
#ifdef Py_TRACE_REFS
/* Display addresses (& refcnts) of all objects still alive.
* An address can be used to find the repr of the object, printed