[Numpy-discussion] Dates and times and Datetime64 (again)

Sankarshan Mudkavi smudkavi at uwaterloo.ca
Fri Apr 11 18:25:46 EDT 2014

So is the consensus that we don't accept any tags at all (not even temporarily)? Would that break too much existing code?


On Apr 1, 2014, at 2:50 PM, Alexander Belopolsky <ndarray at mac.com> wrote:

> On Tue, Apr 1, 2014 at 1:12 PM, Nathaniel Smith <njs at pobox.com> wrote:
> In [6]: a[0] = "garbage"
> ValueError: could not convert string to float: garbage
> (Cf, "Errors should never pass silently".) Any reason why datetime64
> should be different?
> datetime64 is different because it has NaT support from the start.  NaN support for floats seems to be an afterthought if not an accident of implementation.
> And it looks like some errors do pass silently:
> >>> a[0] = "1"
> # not a TypeError
> But I withdraw my suggestion.  The closer datetime64 behavior is to numeric types the better.
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Sankarshan Mudkavi
Undergraduate in Physics, University of Waterloo

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