[issue19171] pow() improvement on longs

[Tim Peters]

Tim Peters added the comment:

I'm glad you pointed it out, Mark!  You're right about unintended consequences, and I confess I didn't think at all about the exponent == 0 case.

I didn't remind myself that 2.7 was a bugfix branch either:  I read Armin's "(which can be applied on both trunk and 2.7)" and reflexively checked it in.

I'd _say_ I'd be more careful about that in the future, but since I still use 2.7.5 for most of my private work I wouldn't believe me either ;-)

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<http://bugs.python.org/issue19171>
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