[Numpy-discussion] isnan bug?

Eric Firing efiring@hawaii....
Thu Mar 20 13:31:37 CDT 2008

Chris Withers wrote:
> Hi All,
> I'm faily sure that:
> numpy.isnan(datetime.datetime.now())
> ...should just return False and not raise an exception.
> Where can I raise a bug to this effect?
> cheers,
> Chris


I don't see why you consider this a bug.  isnan tests whether an 
instance of a numeric type is a nan or not; if you feed it something 
that is not a numeric type, it should, and does, raise an exception, 
just as an exception is raised if you try to add a float to a datetime 
object.  In both cases, raising TypeError is entirely appropriate.


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