[issue18305] [patch] Fast sum() for non-numbers

[Ramchandra Apte]

Ramchandra Apte added the comment:

I agree with Sergey. Would be nice if it could use copy.copy (though that might change behaviour a bit)

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nosy: +Ramchandra Apte

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18305>
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