[Numpy-discussion] isnan bug?

[Eric Firing]

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
> 

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.

Eric