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Add `isfinite` support for `datetime64` and `timedelta64`

See original GitHub issue

numpy.isfinite should support datetime64 and timedelta64 objects. It should return True for any ordinary value, and False for datetime64('NaT') and timedelta64('NaT').

As a side-effect, this will make isclose and allclose usable for datetime64 and timedelta64 objects.

In [97]: numpy.isfinite(numpy.datetime64(10**9, 's'))
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-97-8555b18406e5> in <module>()
----> 1 numpy.isfinite(numpy.datetime64(10**9, 's'))

TypeError: ufunc 'isfinite' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''

Issue Analytics

State:
Created 9 years ago
Reactions:6
Comments:28 (17 by maintainers)

Top GitHub Comments

1reaction

rabernatcommented, Jun 11, 2016

I just hit this bug. I hope it can be fixed.

0reactions

concretevitamincommented, Mar 5, 2019

@eric-wieser Sure - make ndarray of datetime64 function more like first-class citizen will be welcome!

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