[issue27937] logging.getLevelName microoptimization

[R. David Murray]

R. David Murray added the comment:

Parens do not cause lazy evaluation unless what is parenthesized is a generator comprehension.  An expanded if solution is the correct one.  

If Vinay prefers a one liner, I think you could also write:

   _levelToName.get(level) or _nameToLevel.get(level) or ("Level %s" % level)

Because we know we get back either a True string or None, I don't think there's any ambiguity there.

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nosy: +r.david.murray, vinay.sajip

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