[issue20539] math.factorial may throw OverflowError

[Stefan Krah]

Stefan Krah added the comment:

OverflowError seems like a good choice if only values in the range
of a C long are accepted.  ValueError would perhaps be more intuitive,
since the user normally only cares about the accepted range of
input values rather than the internal details.

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nosy: +skrah

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue20539>
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