[issue19967] asyncio: remove _TracebackLogger

[Antoine Pitrou]

Antoine Pitrou added the comment:

I think this patch is bad and should be reverted. It always calls traceback.format_exception() which is an expensive operation, while the _TracebackLogger takes care to call it only when necessary.

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assignee:  -> haypo
status: closed -> open

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19967>
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