[issue43146] 3.10a5 regression: AttributeError: 'NoneType' object has no attribute '__suppress_context__' in traceback.py

[Irit Katriel]

Irit Katriel <iritkatriel at yahoo.com> added the comment:

There's another such issue due to PR 22610 // issue 26389:

>>> traceback.format_exception(None)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\User\src\cpython-dev\lib\traceback.py", line 128, in format_exception
    value, tb = _parse_value_tb(exc, value, tb)
  File "C:\Users\User\src\cpython-dev\lib\traceback.py", line 94, in _parse_value_tb
    return exc, exc.__traceback__
AttributeError: 'NoneType' object has no attribute '__traceback__'

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<https://bugs.python.org/issue43146>
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