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Re: Suggested feature: slice syntax within tuples (or even more generally)?

Newsgroups comp.lang.python
Date 2013-02-14 07:56 -0800
References <2e07acfb-4f48-4a27-9b06-3d8103325c0f@googlegroups.com> <XnsA1677E5A9B368duncanbooth@127.0.0.1>
Message-ID <9b25f7c5-f97a-4f94-98df-29fa6670ff6e@googlegroups.com> (permalink)
Subject Re: Suggested feature: slice syntax within tuples (or even more generally)?
From stephenwlin@gmail.com

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> 
> You can't just allow ':' to generate slice objects everwhere without 
> 
> introducing ambiguity, so your proposal would have to be to allow slice 
> 
> objects in wider but still restricted contexts.

Yeah, I mentioned that in a follow-up. I'm pretty sure of just allowing it within [] and () would work, though, and still be a pretty consistent/simple grammar.

This would also remove Steven's (i.e. Guido's) objection that about

if x:

This would still preserves the main benefit of allowing you to succinctly create slices in any context you need an expression in, because you can always add () around any expression.

-Stephen

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Thread

Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-13 11:00 -0800
  Re: Suggested feature: slice syntax within tuples (or even more generally)? Terry Reedy <tjreedy@udel.edu> - 2013-02-14 00:23 -0500
    Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-13 21:54 -0800
    Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-13 21:54 -0800
      Re: Suggested feature: slice syntax within tuples (or even more generally)? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-02-14 07:32 +0000
        Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-14 00:36 -0800
      Re: Suggested feature: slice syntax within tuples (or even more generally)? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-02-14 08:03 +0000
        Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-14 01:08 -0800
          Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-14 01:26 -0800
        Re: Suggested feature: slice syntax within tuples (or even more generally)? Ian Kelly <ian.g.kelly@gmail.com> - 2013-02-14 11:58 -0700
          Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-14 14:01 -0800
          Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-14 14:01 -0800
            Re: Suggested feature: slice syntax within tuples (or even more generally)? Rick Johnson <rantingrickjohnson@gmail.com> - 2013-02-14 17:46 -0800
            Re: Suggested feature: slice syntax within tuples (or even more generally)? Rick Johnson <rantingrickjohnson@gmail.com> - 2013-02-14 17:46 -0800
  Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-13 22:06 -0800
  Re: Suggested feature: slice syntax within tuples (or even more generally)? Duncan Booth <duncan.booth@invalid.invalid> - 2013-02-14 12:25 +0000
    Re: Suggested feature: slice syntax within tuples (or even more generally)? stephenwlin@gmail.com - 2013-02-14 07:56 -0800
  Re: Suggested feature: slice syntax within tuples (or even more generally)? Andrew Robinson <andrew3@r3dsolutions.com> - 2013-02-25 01:10 +0000
  Re: Suggested feature: slice syntax within tuples (or even more generally)? Ian Kelly <ian.g.kelly@gmail.com> - 2013-02-25 03:28 -0700
  Re: Suggested feature: slice syntax within tuples (or even more generally)? Terry Reedy <tjreedy@udel.edu> - 2013-02-25 06:23 -0500
  Re: Suggested feature: slice syntax within tuples (or even more generally)? Ian Kelly <ian.g.kelly@gmail.com> - 2013-02-25 09:54 -0700
  Re: Suggested feature: slice syntax within tuples (or even more generally)? Andrew Robinson <andrew3@r3dsolutions.com> - 2013-02-25 09:47 +0000
  Re: Suggested feature: slice syntax within tuples (or even more generally)? Nobody <nobody@nowhere.com> - 2013-02-26 07:38 +0000

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