[issue9165] Add math.isfinite()

[Mark Dickinson]

Mark Dickinson <dickinsm at gmail.com> added the comment:

+1.  This is natural counterpart to math.isinf and math.isnan.  In fact, it's quite surprising to have those two functions available and not math.isfinite.

Here's a patch.

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assignee:  -> mark.dickinson
keywords: +patch
nosy: +mark.dickinson
stage:  -> patch review
type:  -> feature request
Added file: http://bugs.python.org/file17867/isfinite.patch

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