New submission from Benjamin Peterson <benja...@python.org>:
When porting recent unittest patches to py3k, I encountered a failure in
testBufferOutputAddErrorOrFailure. The reason is that the test passes None to
traceback.format_exception, which works by accident in 2.x.
I added these lines in _exc_info_to_string to fix it:
chain = exctype is not None
msgLines = traceback.format_exception(exctype, value, tb,
chain=chain)
It would be nice if the nice didn't have to rely on that behavior and that hack
could be removed.
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assignee: michael.foord
components: Library (Lib)
messages: 103089
nosy: benjamin.peterson, michael.foord
priority: normal
severity: normal
status: open
title: None shouldn't be passed to traceback.format_exception
versions: Python 3.2
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue8388>
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