STINNER Victor <vstin...@python.org> added the comment:
> bpo-46417: Revert remove_subclass() change (GH-30750) Ok, this change fixed buildbots. I saw code in typeobject.c which uses a borrowed reference to tp_subclasses with a loop which can modify tp_subclasses. This code should be modified to hold a strong reference to tp_subclasses while accessing it. The test_mock_add_spec() test of test_unittest modifies the subclasses of many types and so is indirectly a stress tests for code accessing tp_subclasses. That's why the regression was only seen in this specific test. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46417> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
