[issue41483] Do not acquire lock in MemoryHandler.flush() if no target defined

[Irit Katriel]

Irit Katriel <iritkatriel at yahoo.com> added the comment:

I think it is unlikely that this change would make a measurable speedup (benchmarks would be needed to prove that it does).

And even if it does, it's for the case where no target has been set, in which case the logger isn't doing anything anyway. Why is this a case worth optimizing?

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41483>
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