[issue19161] collections Counter handles nan strangely

[Adam Davison]

Adam Davison added the comment:

Thanks for the quick response. I'm really using a pandas Series, which is effectively a numpy array behind the scenes as far as I understand, the example I pasted was just to illustrate the behaviour. So the nans are being produced elsewhere, I don't really have control over that step.

It seems like perhaps collections.Counter should handle nans as a special case. But I can appreciate the counter-arguments too.

Thanks,

Adam

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19161>
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