Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #82410

Re: Extension of while syntax

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <python-python-list@m.gmane.org>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.009
X-Spam-Evidence '*H*': 0.98; '*S*': 0.00; 'sufficient': 0.05; 'expressions': 0.07; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:while': 0.09; 'subtle': 0.09; 'python': 0.11; 'expression.': 0.16; 'finney': 0.16; 'quoted': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'header:User-Agent:1': 0.23; 'header:X-Complaints-To:1': 0.27; "doesn't": 0.30; 'errors': 0.30; 'robert': 0.30; 'url:wiki': 0.31; 'url:wikipedia': 0.31; 'writes:': 0.31; 'material': 0.36; 'url:org': 0.36; 'loss': 0.38; 'ben': 0.38; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'skip:u 10': 0.60; 'easy': 0.60; 'worth': 0.66; 'between': 0.67; 'inline': 0.74; 'received:125': 0.84; 'subject:Extension': 0.84; 'responses': 0.93
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From Ben Finney <ben+python@benfinney.id.au>
Subject Re: Extension of while syntax
Date Fri, 12 Dec 2014 14:14:29 +1100
References <14d2b880-3837-4267-a769-33ae7393f78b@googlegroups.com> <857fxxfv9u.fsf@benfinney.id.au> <019f01d015b7$a2da0520$e88e0f60$@us>
Mime-Version 1.0
Content-Type text/plain; charset=utf-8
Content-Transfer-Encoding 8bit
X-Gmane-NNTP-Posting-Host jigong.madmonks.org
X-Public-Key-ID 0xAC128405
X-Public-Key-Fingerprint 517C F14B B2F3 98B0 CB35 4855 B8B2 4C06 AC12 8405
X-Public-Key-URL http://www.benfinney.id.au/contact/bfinney-pubkey.asc
X-Post-From Ben Finney <bignose+hates-spam@benfinney.id.au>
User-Agent Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux)
Cancel-Lock sha1:gqxgkSBSEwUYECYy4303anJ4FFc=
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.15
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive <http://mail.python.org/pipermail/python-list/>
List-Post <mailto:python-list@python.org>
List-Help <mailto:python-list-request@python.org?subject=help>
List-Subscribe <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.16890.1418354073.18130.python-list@python.org> (permalink)
Lines 22
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1418354073 news.xs4all.nl 2895 [2001:888:2000:d::a6]:43518
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:82410

Show key headers only | View raw

(Please don't top-post; instead, interleave responses inline with the
quoted material and trim the excess. See
<URL:https://en.wikipedia.org/wiki/Posting_style#Interleaved_style>.)

"Clayton Kirkwood" <crk@godblessthe.us> writes:

> I would prefer:
> while value = initial_value in undesired_values:
>         value = get_some_value()

The easy confusion between ‘=’ and ‘==’ in a condition is sufficient
that Python doesn't allow the ‘=’ operation in an expression.

I think that the subtle errors avoided by that is worth the loss of
expressions like the above.

-- 
 \          “Pity the meek, for they shall inherit the earth.” —Donald |
  `\                                              Robert Perry Marquis |
_o__)                                                                  |
Ben Finney

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Extension of while syntax Nelson Crosby <nc@sourcecomb.com> - 2014-12-11 18:21 -0800
  Re: Extension of while syntax Ben Finney <ben+python@benfinney.id.au> - 2014-12-12 13:37 +1100
  Re: Extension of while syntax Chris Angelico <rosuav@gmail.com> - 2014-12-12 13:38 +1100
    Re: Extension of while syntax Marko Rauhamaa <marko@pacujo.net> - 2014-12-12 09:10 +0200
      Re: Extension of while syntax Chris Angelico <rosuav@gmail.com> - 2014-12-12 18:38 +1100
        Re: Extension of while syntax Marko Rauhamaa <marko@pacujo.net> - 2014-12-12 10:25 +0200
      Re: Extension of while syntax cl@isbd.net - 2014-12-12 09:09 +0000
        Re: Extension of while syntax Marko Rauhamaa <marko@pacujo.net> - 2014-12-12 12:33 +0200
  RE: Extension of while syntax "Clayton Kirkwood" <crk@godblessthe.us> - 2014-12-11 18:59 -0800
  Re: Extension of while syntax Terry Reedy <tjreedy@udel.edu> - 2014-12-11 22:00 -0500
  Re: Extension of while syntax Ben Finney <ben+python@benfinney.id.au> - 2014-12-12 14:14 +1100
  Re: Extension of while syntax Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-12-12 08:00 +0000
  Re: Extension of while syntax Chris Angelico <rosuav@gmail.com> - 2014-12-12 19:05 +1100
  Re: Extension of while syntax Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-12-12 11:38 -0500
  Re: Extension of while syntax Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-12-13 22:56 +1100

csiph-web