[issue38382] statistics.harmonic_mean fails to raise error with negative input that follows a 0

[Warren Weckesser]

Warren Weckesser <warren.weckesser at gmail.com> added the comment:

One more case where the "early out" produces a result that seems wrong:

In [20]: harmonic_mean([math.nan, 0])                                           
Out[20]: 0

Anyone who didn't know about the "early out" behavior would probably expect the result to be NAN.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38382>
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