> On 8 Oct 2019, at 18:35, Todd <[email protected]> wrote:
>
> On Tue, Oct 8, 2019 at 12:22 PM Andrew Barnert via Python-ideas
> <[email protected] <mailto:[email protected]>> wrote:
> On Oct 7, 2019, at 21:21, Caleb Donovick <[email protected]
> <mailto:[email protected]>> wrote:
> >
> > > But what if you wanted to take both positional AND keyword?
> >
> > I was suggesting that that wouldn't be allowed. So subscript either has a
> > single argument, a tuple of arguments, or a dictionary of arguments.
> > Allowing both has some advantages but is less cleanly integratible.
>
> The problem is that half the examples people conjure up involve both: using
> the keywords as options, while using the positional arguments for the actual
> indices. Calling the proposal “kwargs in getitem” encourages that thinking,
> because that’s the prototypical reason for kwargs in function calls.
>
> If there were non-toy examples, so people didn’t have to imagine how it would
> be used for themselves, that might be helpful.
>
>
> Here is an example modified from the xarray documentation, where you want to
> assign to a subset of your array:
>
> da.isel(space=0, time=slice(None, 2))[...] = spam
>
> With this syntax this could be changed to:
>
> da[space=0, time=:2] = spam
I must have missed something... when did the proposal we're discussing start
allowing : there?
/ Anders
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