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

Groups > comp.lang.python > #45267

Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ]

Path csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!newsfeed.xs4all.nl!newsfeed4.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 0.004
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'from:addr:yahoo.co.uk': 0.04; 'explicit': 0.07; 'subject:bug': 0.07; 'adopted': 0.09; 'ambiguity': 0.09; 'lawrence': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'statements': 0.09; 'worked.': 0.09; 'python': 0.11; 'guess.': 0.16; 'insisted': 0.16; 'languages)': 0.16; 'python3.': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'silly': 0.16; 'subject:python3': 0.16; 'wrote:': 0.18; 'comfortable': 0.22; 'header:User-Agent:1': 0.23; 'url:moin': 0.24; 'mon,': 0.24; 'header:X-Complaints-To:1': 0.27; 'header:In-Reply-To:1': 0.27; 'lines': 0.31; 'url:wiki': 0.31; '+0100,': 0.31; 'url:python': 0.33; 'test': 0.35; 'but': 0.35; 'there': 0.35; 'doing': 0.36; "didn't": 0.36; 'possible': 0.36; 'url:org': 0.36; 'clear': 0.37; 'to:addr:python-list': 0.38; 'fact': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'how': 0.40; 'read': 0.60; 'most': 0.60; "you're": 0.61; 'personal': 0.63; 'myself': 0.63; 'face': 0.64; 'stand': 0.64; 'more': 0.64; 'beats': 0.84; 'zen': 0.84; '\xe2\x80\xa6': 0.84; 'received:89': 0.85; 'refuse': 0.93; '2013': 0.98
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From Mark Lawrence <breamoreboy@yahoo.co.uk>
Subject Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ]
Date Mon, 13 May 2013 23:53:01 +0100
References <mailman.1603.1368401007.3114.python-list@python.org> <HP2kt.66723$Tl3.12499@fx29.fr7> <CAA=1kxSJXn1_Y=oy_oxvL+mUtsZvS+FGoy-vZ39OWpbwDF07dQ@mail.gmail.com> <51912C27.3020809@nedbatchelder.com> <mailman.1641.1368470096.3114.python-list@python.org> <VLckt.68242$kO.37986@fx14.fr7>
Mime-Version 1.0
Content-Type text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding 8bit
X-Gmane-NNTP-Posting-Host host-89-240-174-199.as13285.net
User-Agent Mozilla/5.0 (Windows NT 6.0; rv:17.0) Gecko/20130328 Thunderbird/17.0.5
In-Reply-To <VLckt.68242$kO.37986@fx14.fr7>
X-Antivirus avast! (VPS 130513-1, 13/05/2013), Outbound message
X-Antivirus-Status Clean
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 <http://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 <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.1645.1368485596.3114.python-list@python.org> (permalink)
Lines 35
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1368485596 news.xs4all.nl 16002 [2001:888:2000:d::a6]:47098
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:45267

Show key headers only | View raw

On 13/05/2013 22:17, Alister wrote:
> On Mon, 13 May 2013 19:28:29 +0100, Fábio Santos wrote:
>
>> I think it is more readable. When doing more complicated statements I
>> use != instead, but when it's a single test I prefer not … ==
>>
>> It's a personal thing. It may also have to do with the fact that I
>> didn't know python had != when I was a novice.
>> On 13 May 2013 19:08, "Ned Batchelder" <ned@nedbatchelder.com> wrote:
>>
>
> I would then still write it as not (x == y) to make it clear to myself &
> avoid any possible confusion although I think that X != Y is much
> cleaner.
> 2 lines from the zen stand out here:-
>
> Explicit is better than implicit.
> in the face of ambiguity refuse the temptation to guess.
>
> there are many features of Python (& other languages) i did not now when
> I started but have adopted once I understood what they were & how they
> worked. then again use what you are most comfortable with.
>
> Practicality beats purity
>

I much prefer the alternative <> for != but some silly people insisted 
that this be removed from Python3.  Just how stupid can you get?

-- 
If you're using GoogleCrap™ please read this 
http://wiki.python.org/moin/GoogleGroupsPython.

Mark Lawrence

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

Thread

Differences of "!=" operator behavior in python3 and python2 [ bug? ] "Mr. Joe" <titanix88@gmail.com> - 2013-05-13 05:23 +0600
  Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Alister <alister.ware@ntlworld.com> - 2013-05-13 09:59 +0000
    Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Fábio Santos <fabiosantosart@gmail.com> - 2013-05-13 18:26 +0100
    Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Ned Batchelder <ned@nedbatchelder.com> - 2013-05-13 14:08 -0400
    Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Chris Angelico <rosuav@gmail.com> - 2013-05-14 04:15 +1000
    Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Fábio Santos <fabiosantosart@gmail.com> - 2013-05-13 19:28 +0100
      Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Alister <alister.ware@ntlworld.com> - 2013-05-13 21:17 +0000
        Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Fábio Santos <fabiosantosart@gmail.com> - 2013-05-13 22:48 +0100
        Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-05-13 23:53 +0100
        Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Dave Angel <davea@davea.name> - 2013-05-13 19:22 -0400
          Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-05-14 05:09 +0000
            Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-05-14 19:01 -0400
              Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-05-15 00:15 +0000
                Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2013-05-14 22:20 -0400
        Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Andrew Berg <bahamutzero8825@gmail.com> - 2013-05-13 18:27 -0500
        Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Ian Kelly <ian.g.kelly@gmail.com> - 2013-05-13 17:32 -0600
        Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-05-14 05:21 +0000
          Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Alister <alister.ware@ntlworld.com> - 2013-05-15 14:41 +0000
        Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ] Chris Angelico <rosuav@gmail.com> - 2013-05-14 17:31 +1000

csiph-web