Ziyue Jiang <ziyue.jian...@gmail.com> added the comment:
I have no detailed code. The way to I produce it is that using PyType_FromSpec() to generate a type A without the flag Py_TPFLAGS_DEFAULT(which sets the flag Py_TPFLAGS_HAVE_VERSION_TAG). Then compile and run in Python. from my_pkg import A class Time1(Time): def __init__(self): pass import multiprocessing (This import is a method to 100% reproduce it. Another way is to use python3-dbg running the code.) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue44588> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com