Peter Bašista <pbasi...@gmail.com> added the comment: > Can this crash be reproduced without uvloop? I am not aware of a way to reproduce this without uvloop.
> What is the backtrace of the assertion failure? Without uvloop, the following exception is raised: Exception ignored in: <bound method LoopWrapper.__del__ of <__main__.LoopWrapper object at 0x7fe14ec569b0>> Traceback (most recent call last): File "uvloop_test.py", line 13, in __del__ File "/usr/lib/python3.6/asyncio/base_events.py", line 276, in create_future AttributeError: 'NoneType' object has no attribute 'Future' With uvloop and with Python compiled with --with-pydebug configure option, the failed assertion is mentioned in the original uvloop bug report. In particular, this assertion fails: python3.6-dbg: ../Objects/abstract.c:2300: _PyObject_FastCallDict: Assertion `func != NULL' failed. A full GDB backtrace is attached. ---------- nosy: +pbasista Added file: https://bugs.python.org/file47619/uvloop-test.gdb-backtrace.txt _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue33623> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com