| https://github.com/boostorg/python/commit/a218babc8daee904a83f550fb66e5cb3f1cb3013 |
| https://github.com/boostorg/python/pull/385 |
| |
| From a218babc8daee904a83f550fb66e5cb3f1cb3013 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 |
| --- 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 */ |
| |