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


Groups > comp.lang.python > #45256

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

Date 2013-05-13 14:08 -0400
From Ned Batchelder <ned@nedbatchelder.com>
Subject Re: Differences of "!=" operator behavior in python3 and python2 [ bug? ]
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>
Newsgroups comp.lang.python
Message-ID <mailman.1638.1368468525.3114.python-list@python.org> (permalink)

Show all headers | View raw


[Multipart message — attachments visible in raw view] - view raw

On 5/13/2013 1:26 PM, Fábio Santos wrote:
>
>
> On 13 May 2013 11:04, "Alister" <alister.ware@ntlworld.com 
> <mailto:alister.ware@ntlworld.com>> wrote:
> > this looks to me like an issue with operator precidence
> >
> > you code is evaluating as (Not x) == y
> > rather than not (x == y)
>
> I can say for sure that the precedence is as expected. I always use 
> "not ... == ..." Instead of !=.
>
>

If you don't mind my asking, why do you do that?

--Ned.

Back to comp.lang.python | Previous | NextPrevious 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