From ae5da2a7e8f1111757d8a474095486a5b22aa12d Mon Sep 17 00:00:00 2001

From: Victor Stinner <vstinner@python.org>

Date: Mon, 25 Apr 2022 10:51:46 +0200

Subject: [PATCH] Fix enum_type_object type on Python 3.11

The enum_type_object type inherits from PyLong_Type which is not tracked

by the GC. Instances doesn't have to be tracked by the GC: remove the

Py_TPFLAGS_HAVE_GC flag.

The Python C API documentation says:

    "To create a container type, the tp_flags field of the type object

    must include the Py_TPFLAGS_HAVE_GC and provide an implementation of

    the tp_traverse handler."

https://docs.python.org/dev/c-api/gcsupport.html

The new exception was introduced in Python 3.11 by:

https://github.com/python/cpython/issues/88429

---

 libs/python/src/object/enum.cpp | 1 -

 1 file changed, 1 deletion(-)

diff --git a/libs/python/src/object/enum.cpp b/libs/python/src/object/enum.cpp

index 293e705899..5753b32e07 100644

--- a/libs/python/src/object/enum.cpp

+++ b/libs/python/src/object/enum.cpp

@@ -113,7 +113,6 @@ static PyTypeObject enum_type_object = {

 #if PY_VERSION_HEX < 0x03000000

     | Py_TPFLAGS_CHECKTYPES

 #endif

-    | Py_TPFLAGS_HAVE_GC

     | Py_TPFLAGS_BASETYPE,                  /* tp_flags */

     0,                                      /* tp_doc */

     0,                                      /* tp_traverse */