STINNER Victor <vstin...@python.org> added the comment:
Apply attached debug_subtype_dealloc.patch to reproduce the issue on Linux with attached ref.py script: $ ./python ref.py exit subtype_dealloc(_ABC): call basedealloc() with Py_REFCNT(type)=1 subtype_dealloc(_Precedence): call basedealloc() with Py_REFCNT(type)=1 subtype_dealloc(property): call basedealloc() with Py_REFCNT(type)=1 subtype_dealloc(FlagBoundary): call basedealloc() with Py_REFCNT(type)=1 LAST GC Cycle.__del__ Cycle.__del__ subtype_dealloc(keyword): call basedealloc() with Py_REFCNT(type)=1 python: Objects/typeobject.c:1462: subtype_dealloc: Assertion `!_PyMem_IsPtrFreed(type->tp_name)' failed. Abandon (core dumped) ---------- Added file: https://bugs.python.org/file50055/ref.py _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44184> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com