[issue17491] Consolidate traceback.format_tb and traceback.print_tb

[Benjamin Peterson]

Changes by Benjamin Peterson <benjamin at python.org>:


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resolution:  -> out of date
status: open -> closed
superseder:  -> traceback.py has a lot of code duplication

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17491>
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