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Re: allow line break at operators

References (6 earlier) <Xns9F3D8883BD21Aduncanbooth@127.0.0.1> <1312981104.89312.YahooMailNeo@web121520.mail.ne1.yahoo.com> <1312982377.95657.YahooMailNeo@web121508.mail.ne1.yahoo.com> <CAPTjJmq6bBPpMHFM7DufWnD2Mo-NWinb-d6iTeSGtRW4D1fOiw@mail.gmail.com> <1313031175.38817.YahooMailNeo@web121515.mail.ne1.yahoo.com>
Date 2011-08-10 21:16 -0700
Subject Re: allow line break at operators
From Chris Rebert <clp2@rebertia.com>
Newsgroups comp.lang.python
Message-ID <mailman.2147.1313036218.1164.python-list@python.org> (permalink)

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On Wed, Aug 10, 2011 at 7:52 PM, Yingjie Lan <lanyjie@yahoo.com> wrote:
> :And if we require {} then truly free indentation should be OK too! But
>
> :it wouldn't be Python any more.
>
> Of course, but not the case with ';'. Currently ';' is optional in Python,

I think of it more as that Python deigns to permit semicolons.

> But '{' is used for dicts. Clearly, ';' and '{' are different in magnitude.
>
> So the decision is: shall we change ';' from optional to mandatory
> to allow free line splitting?

Hell no, considering that the sizable majority of lines *aren't*
split, which makes those semicolons completely redundant to their
accompanying newlines. We'd be practicing poor Huffman coding by
optimizing for the *un*common case. It would also add punctuational
noise to what is otherwise an amazingly clean and readable syntax.
Accidental semicolon omission is (IMO) the most irritating source of
syntax (and, inadvertently, sometimes other more serious) errors in
curly-braced programming languages.

Such a core syntax feature is not going to be changed lightly (or likely ever).

Cheers,
Chris

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Re: allow line break at operators Yingjie Lan <lanyjie@yahoo.com> - 2011-08-09 23:05 -0700
  Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-10 18:32 +1000
    Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-10 09:39 +0100
    Re: allow line break at operators Dan Sommers <dan@tombstonezero.net> - 2011-08-10 09:56 +0000
      Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-11 00:44 +1000
    Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-10 11:26 +0100
      Re: allow line break at operators Duncan Booth <duncan.booth@invalid.invalid> - 2011-08-10 12:25 +0000
        Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-10 13:42 +0100
        Re: allow line break at operators Yingjie Lan <lanyjie@yahoo.com> - 2011-08-10 05:58 -0700
        Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-10 15:45 +0100
        Re: allow line break at operators Yingjie Lan <lanyjie@yahoo.com> - 2011-08-10 06:19 -0700
        Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-10 16:56 +0100
          Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-10 17:55 +0000
            Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-11 07:51 +1000
              Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-10 23:42 +0100
                Re: allow line break at operators Neil Cerutti <neilc@norwich.edu> - 2011-08-11 14:40 +0000
              Re: Python & Sullivan Tim Chase <python.list@tim.thechases.com> - 2011-08-10 18:26 -0500
                Re: Python & Sullivan Ben Finney <ben+python@benfinney.id.au> - 2011-08-11 10:57 +1000
              Re: Python & Sullivan Chris Angelico <rosuav@gmail.com> - 2011-08-11 00:54 +0100
              Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-11 04:59 +0000
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-11 15:56 +1000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-11 21:19 +0000
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-12 00:58 +0100
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-12 11:40 +1000
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-12 08:09 +0100
                Re: allow line break at operators Neil Cerutti <neilc@norwich.edu> - 2011-08-12 12:57 +0000
                Re: allow line break at operators Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> - 2011-08-12 14:54 +0200
                Re: allow line break at operators Tim Roberts <timr@probo.com> - 2011-08-14 22:22 -0700
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-12 18:59 +1000
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-12 20:40 +1000
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-12 21:16 +1000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 16:33 +0000
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-11 22:29 +1000
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-11 22:40 +1000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-11 21:19 +0000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-11 21:19 +0000
                Re: allow line break at operators Ethan Furman <ethan@stoneleaf.us> - 2011-08-11 15:43 -0700
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 06:34 +0000
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-12 08:20 +0100
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-12 08:33 -0700
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-12 20:52 +0100
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 16:33 +0000
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-12 20:39 +1000
                Re: allow line break at operators Chris Rebert <clp2@rebertia.com> - 2011-08-12 10:03 -0700
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 18:37 +0000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 16:33 +0000
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-12 21:01 +0100
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 21:06 +0000
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-12 08:26 -0700
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 16:33 +0000
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-12 10:57 -0700
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-12 21:09 +0100
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 21:06 +0000
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-13 08:39 +1000
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-12 23:50 +0100
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-13 09:19 +1000
                Re: allow line break at operators Tim Chase <python.list@tim.thechases.com> - 2011-08-12 18:53 -0500
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-13 00:39 +0000
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-13 10:57 +1000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-13 02:34 +0000
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-13 18:50 -0700
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-13 19:07 -0700
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-13 18:59 -0700
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-14 17:10 +1000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-14 08:07 +0000
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-14 19:25 +1000
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-15 00:26 +1000
                Re: allow line break at operators Roy Smith <roy@panix.com> - 2011-08-14 11:35 -0400
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-15 03:24 +1000
                Re: Re: allow line break at operators Dave Angel <davea@ieee.org> - 2011-08-14 17:46 -0400
                Re: allow line break at operators Roy Smith <roy@panix.com> - 2011-08-14 18:46 -0400
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-15 00:02 +0100
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-14 16:39 +0100
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-15 03:26 +1000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-14 19:01 +0000
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-15 11:54 +1000
                Re: allow line break at operators Chris Rebert <clp2@rebertia.com> - 2011-08-14 19:10 -0700
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-15 04:28 +0000
                Re: allow line break at operators Tim Chase <python.list@tim.thechases.com> - 2011-08-15 06:40 -0500
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-15 23:30 +1000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-15 16:32 +0000
                Re: allow line break at operators alex23 <wuwei23@gmail.com> - 2011-08-15 21:13 -0700
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-15 21:37 -0700
                Re: allow line break at operators alex23 <wuwei23@gmail.com> - 2011-08-15 23:49 -0700
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-16 11:56 -0700
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-15 04:28 +0000
                Re: allow line break at operators Terry Reedy <tjreedy@udel.edu> - 2011-08-15 03:31 -0400
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-15 14:21 -0700
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-15 09:27 +0100
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-14 09:34 +0100
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-14 19:27 +1000
                Re: allow line break at operators Ethan Furman <ethan@stoneleaf.us> - 2011-08-14 03:51 -0700
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-14 12:59 +0100
                Re: allow line break at operators Teemu Likonen <tlikonen@iki.fi> - 2011-08-14 12:46 +0300
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-14 19:01 +0000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-14 19:01 +0000
                Re: allow line break at operators Chris Rebert <clp2@rebertia.com> - 2011-08-14 01:44 -0700
                Re: allow line break at operators Teemu Likonen <tlikonen@iki.fi> - 2011-08-16 07:04 +0300
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-13 19:18 -0700
                Re: allow line break at operators Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-08-13 13:19 +1200
                Re: allow line break at operators Johann Hibschman <jhibschman+usenet@gmail.com> - 2011-08-15 08:27 -0500
                Re: allow line break at operators Roy Smith <roy@panix.com> - 2011-08-15 09:41 -0400
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-15 15:16 +0100
                Re: allow line break at operators Roy Smith <roy@panix.com> - 2011-08-15 20:34 -0400
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-16 01:37 +0100
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-16 00:28 +1000
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-15 15:42 +0100
                Re: allow line break at operators Roy Smith <roy@panix.com> - 2011-08-15 20:30 -0400
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-16 00:39 +0000
                Re: allow line break at operators Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2011-08-16 12:43 +1200
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-15 16:32 +0000
                Re: allow line break at operators Ethan Furman <ethan@stoneleaf.us> - 2011-08-12 13:35 -0700
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 21:06 +0000
                Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-13 08:03 +1000
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-12 22:14 +0000
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-13 08:36 +1000
                Re: allow line break at operators Terry Reedy <tjreedy@udel.edu> - 2011-08-12 20:15 -0400
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-13 00:44 +0000
                Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-08-13 18:25 -0700
                Re: allow line break at operators Ben Finney <ben+python@benfinney.id.au> - 2011-08-13 08:12 +1000
                RE: allow line break at operators "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2011-08-16 15:51 -0400
                RE: allow line break at operators "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2011-08-16 15:26 -0400
                Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-16 20:19 +0000
                Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-16 21:05 +0100
            Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-11 10:32 +1000
              Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-11 01:47 +0100
              Re: allow line break at operators Seebs <usenet-nospam@seebs.net> - 2011-08-11 04:59 +0000
        Re: allow line break at operators Yingjie Lan <lanyjie@yahoo.com> - 2011-08-10 19:52 -0700
          Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-11 14:18 +1000
            Re: allow line break at operators Chris Rebert <clp2@rebertia.com> - 2011-08-11 00:50 -0700
            Re: allow line break at operators Vito 'ZeD' De Tullio <zak.mc.kraken@libero.it> - 2011-08-11 12:21 +0200
        Re: allow line break at operators Yingjie Lan <lanyjie@yahoo.com> - 2011-08-10 19:58 -0700
        Re: allow line break at operators Chris Rebert <clp2@rebertia.com> - 2011-08-10 21:16 -0700
        Re: allow line break at operators Chris Rebert <clp2@rebertia.com> - 2011-08-10 22:07 -0700
        Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-11 09:24 +0100
        Re: allow line break at operators MRAB <python@mrabarnett.plus.com> - 2011-08-11 14:03 +0100
        Re: [Python-ideas] allow line break at operators Matt Joiner <anacrolix@gmail.com> - 2011-08-12 00:28 +1000
          Re: [Python-ideas] allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-12 12:32 +1000
        Re: [Python-ideas] allow line break at operators Jakob Bowyer <jkbbwr@gmail.com> - 2011-08-11 16:42 +0100
        Re: [Python-ideas] allow line break at operators Daniel Greenfeld <pydanny@gmail.com> - 2011-08-11 10:04 -0700
        Re: [Python-ideas] allow line break at operators Paul Colomiets <paul@colomiets.name> - 2011-08-11 22:17 +0300
        Re: [Python-ideas] allow line break at operators Devin Jeanpierre <jeanpierreda@gmail.com> - 2011-08-11 17:06 -0400
        Re: [Python-ideas] allow line break at operators Devin Jeanpierre <jeanpierreda@gmail.com> - 2011-08-11 17:29 -0400
        Re: [Python-ideas] allow line break at operators Jim Jewett <jimjjewett@gmail.com> - 2011-08-11 17:39 -0400
        Re: [Python-ideas] allow line break at operators Devin Jeanpierre <jeanpierreda@gmail.com> - 2011-08-11 18:29 -0400
        Re: [Python-ideas] allow line break at operators Matt Joiner <anacrolix@gmail.com> - 2011-09-02 15:33 +1000
          Re: [Python-ideas] allow line break at operators Roy Smith <roy@panix.com> - 2011-09-03 12:59 -0400
        Re: [Python-ideas] allow line break at operators "Stephen J. Turnbull" <stephen@xemacs.org> - 2011-09-02 16:28 +0900
        Re: [Python-ideas] allow line break at operators Guido van Rossum <guido@python.org> - 2011-09-02 12:30 -0700
        Re: [Python-ideas] allow line break at operators "Stephen J. Turnbull" <stephen@xemacs.org> - 2011-09-03 13:38 +0900
        Re: [Python-ideas] allow line break at operators "Stephen J. Turnbull" <stephen@xemacs.org> - 2011-09-03 15:10 +0900
        Re: [Python-ideas] allow line break at operators Terry Reedy <tjreedy@udel.edu> - 2011-09-03 15:01 -0400
        Re: [Python-ideas] allow line break at operators ron3200 <ron3200@gmail.com> - 2011-09-04 10:22 -0500
          Re: allow line break at operators rantingrick <rantingrick@gmail.com> - 2011-09-04 11:08 -0700
      Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-11 00:37 +1000
        Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-10 16:13 +0100
        Re: allow line break at operators Ian Kelly <ian.g.kelly@gmail.com> - 2011-08-10 09:16 -0600
          Re: allow line break at operators Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-08-11 09:32 +1000
            Re: allow line break at operators Chris Angelico <rosuav@gmail.com> - 2011-08-11 00:55 +0100

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