I also find the example with :keyword a bit jarring at first glance, so I
propose a double colon to alleviate the problem if we go in that direction.
Compare:
{ :a, "b": x, :c }
{ ::a, "b": x, ::c }
On Fri, Apr 17, 2020 at 10:05 PM Rhodri James <[email protected]> wrote:
> On 17/04/2020 19:21, Andrew Barnert via Python-ideas wrote:
> >> On Apr 17, 2020, at 01:58, Steven D'Aprano<[email protected]> wrote:
> >>
> >> On Thu, Apr 16, 2020 at 09:21:05PM -0700, Andrew Barnert via
> Python-ideas wrote:
> >>
> >>> But I don’t see why that rules out the “bare colon” form that I and
> >>> someone else apparently both proposed in separate sub threads of this
> >>> thread:
> >>> { :a, "b": x, :c }
> >>> as shorthand for:
> >>> { "a": a, "b": x, "c": c }
> >>
> >> I did a double-take reading that, because I visually parsed it as:
> >>
> >> { :a,
> >> "b":
> >> x, :c
> >> }
> >>
> >> and couldn't work out what was going on.
> >>
> >> After saving this draft, closing the email, then reopening it, I read
> >> the proposed dict the same way. So I don't think it was just a momentary
> >> glitch.
> > I honestly think, as you suggested at the end, that this may be just
> you. You’ve had similar reactions to other syntax that nobody else
> replicated, and I think that’s happening again here.
>
> It's not just Steven. After dusting my monitor to remove flyspecs, I
> still couldn't find a natural way of reading that example. I didn't
> visually parse it quite the same, but the excess of punctuation still
> encourage me to completely miss the '"b": x' part being a unit.
>
> --
> Rhodri James *-* Kynesim Ltd
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