[issue17413] format_exception() breaks on exception tuples from trace function

[R. David Murray]

R. David Murray added the comment:

Benjamin reviewed the patch and pointed out that the settrace state needed to be restored in the test, so I fixed that when I committed it.

Thanks Ingrid and Brendan.

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resolution:  -> fixed
stage: commit review -> committed/rejected
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17413>
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