New submission from Alexey Izbyshev <izbys...@ispras.ru>: Demo:
>>> from abc import ABC >>> issubclass(1, ABC) Segmentation fault (core dumped) The stack trace is attached. Before reimplementation of abc in C, the result was confusing too: Python 3.6.4 (v3.6.4:d48eceb, Dec 19 2017, 06:54:40) [MSC v.1900 64 bit (AMD64)] on win32 >>> from abc import ABC >>> issubclass(1, ABC) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "abc.py", line 230, in __subclasscheck__ File "_weakrefset.py", line 84, in add TypeError: cannot create weak reference to 'int' object ---------- components: Extension Modules files: stack-trace.txt messages: 313259 nosy: izbyshev, levkivskyi priority: normal severity: normal status: open title: issubclass(obj, abc.ABC) causes a segfault type: crash versions: Python 3.8 Added file: https://bugs.python.org/file47470/stack-trace.txt _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue32999> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
