[issue34068] traceback.clear_frames(): Objects/typeobject.c:3086: _PyType_Lookup: Assertion `!PyErr_Occurred()' failed.

[STINNER Victor]

STINNER Victor <vstinner at redhat.com> added the comment:

> res = PyObject_CallMethodObjArgs(self, _PyIO_str_flush, NULL);
> assert(!PyErr_Occurred());     /* <---- THIS ASSERTION FAILS */

Using this additional assertion, test_io also fails on test_flush_error_on_close().

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue34068>
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