[issue10805] traceback.print_exception throws AttributeError when exception is None

[Boris FELD]

Boris FELD <lothiraldan at gmail.com> added the comment:

I add a test to test_traceback.py for this bug. Bug is confirmed on python 3.2 and python3.3. I use 2.x behavior as reference.

I don't know if we should add an assertion in traceback.print_exception or traceback._iter_chain, so I add the test for traceback.print_exception.

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keywords: +patch
nosy: +Boris.FELD
Added file: http://bugs.python.org/file24011/new_traceback_test_print_traceback.patch

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