My personal rule for flexible inputs like that is that it should be
encouraged so long as it does not introduce ambiguity. Furthermore,
Allowing a scalar as an input doesn't add a congitive disconnect on the
user on how to specify multiple columns. Therefore, I'd give this a +1.
On Mon, Nov 9, 2015 at 4:15 AM, Irvin Probst <irvin.pro...@ensta-bretagne.fr
> wrote:
> Hi,
> I've recently seen many students, coming from Matlab, struggling against
> the usecols argument of loadtxt. Most of them tried something like:
> loadtxt("foo.bar", usecols=2) or the ones with better documentation
> reading skills tried loadtxt("foo.bar", usecols=(2)) but none of them
> understood they had to write usecols=[2] or usecols=(2,).
>
> Is there a policy in numpy stating that this kind of arguments must be
> sequences ? I think that being able to an int or a sequence when a single
> column is needed would make this function a bit more user friendly for
> beginners. I would gladly submit a PR if noone disagrees.
>
> Regards.
>
> --
> Irvin
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