bpo-46417: Debug tp_subclasses crash #30791
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* _PyType_GetSubclasses() no longer holds a reference to tp_subclasses: its loop cannot modify tp_subclasses. * remove_subclass() now sets tp_subclasses to NULL if the dictionary becomes empty.
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I wrote a real fix instead: #30793 |
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tp_subclasses: its loop cannot modify tp_subclasses.
becomes empty.
https://bugs.python.org/issue46417