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

Groups > comp.lang.python > #16499

Re: order independent hash?

Path csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!newsfeed.eweka.nl!eweka.nl!feeder3.eweka.nl!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path <dihedral88888@googlemail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.030
X-Spam-Evidence '*H*': 0.94; '*S*': 0.00; 'args': 0.05; 'python': 0.08; 'reply-to:addr:comp.lang.python': 0.09; 'to:addr:comp.lang.python': 0.09; 'wednesday,': 0.15; 'enough?': 0.16; 'ideas?': 0.16; 'parsed': 0.16; 'subject:independent': 0.16; 'cc:addr:python-list': 0.16; 'wrote:': 0.18; 'cc:no real name:2**0': 0.20; 'header:In-Reply-To:1': 0.22; 'differ': 0.23; 'string': 0.24; 'cc:2**0': 0.24; 'command': 0.24; 'received:209.85.220': 0.27; 'lists': 0.28; 'cc:addr:python.org': 0.29; 'actions.': 0.30; 'hash': 0.30; 'subject:?': 0.31; 'list': 0.32; 'header:User-Agent:1': 0.33; 'from:addr:googlemail.com': 0.34; 'duplicate': 0.34; 'typical': 0.34; 'list.': 0.35; 'equal': 0.36; 'but': 0.37; 'received:google.com': 0.37; 'linked': 0.38; 'replace': 0.38; 'received:209.85': 0.38; 'received:209': 0.40; '2011': 0.61; 'order': 0.62; 'further': 0.64; 'header:Reply-To:1': 0.71; 'reply-to:no real name:2**0': 0.72; '30,': 0.74; 'reply- to:addr:googlegroups.com': 0.74; 'easy:': 0.84; 'otten': 0.84
Newsgroups comp.lang.python
Date Thu, 1 Dec 2011 07:35:32 -0800 (PST)
In-Reply-To <mailman.3156.1322657239.27778.python-list@python.org>
Complaints-To groups-abuse@google.com
Injection-Info glegroupsg2000goo.googlegroups.com; posting-host=1.168.133.35; posting-account=5JdMBQoAAABHnS4mjpqEzxnmWtgiiVNw
References <jb57p7$b1j$1@dough.gmane.org> <mailman.3156.1322657239.27778.python-list@python.org>
User-Agent G2/1.0
X-Google-Web-Client true
MIME-Version 1.0
Subject Re: order independent hash?
From 88888 Dihedral <dihedral88888@googlemail.com>
To comp.lang.python@googlegroups.com
Content-Type text/plain; charset=ISO-8859-1
Cc python-list@python.org
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.12
Precedence list
Reply-To comp.lang.python@googlegroups.com
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>
Message-ID <mailman.3200.1322753740.27778.python-list@python.org> (permalink)
Lines 17
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1322753740 news.xs4all.nl 6878 [2001:888:2000:d::a6]:59912
X-Complaints-To abuse@xs4all.nl
Xref x330-a1.tempe.blueboxinc.net comp.lang.python:16499

Show key headers only | View raw

On Wednesday, November 30, 2011 8:47:13 PM UTC+8, Peter Otten wrote:
> Neal Becker wrote:
> 
> > I like to hash a list of words (actually, the command line args of my
> > program) in such a way that different words will create different hash,
> > but not sensitive to the order of the words.  Any ideas?
> 
> You mean a typical python hash value which would be /likely/ to differ for 
> different lists and /guaranteed/ to be equal for equal lists is not good 
> enough? Because that would be easy:
> 
> args = sys.argv[1:]
> hash(tuple(sorted(args))) # consider duplicate args

I knew a hash can replace a bi-directional linked list.
The value  can be a multi-field string  to be parsed for further actions. 
Is this what you are asking?

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

Thread

Re: order independent hash? Peter Otten <__peter__@web.de> - 2011-11-30 13:47 +0100
  Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-01 07:35 -0800
  Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-01 07:35 -0800
    Re: order independent hash? Dave Angel <d@davea.name> - 2011-12-01 10:52 -0500
      Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-01 08:17 -0800
      Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-01 08:17 -0800
    Re: order independent hash? Chris Angelico <rosuav@gmail.com> - 2011-12-02 03:18 +1100
      Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-01 20:29 -0800
        Re: order independent hash? Chris Angelico <rosuav@gmail.com> - 2011-12-02 16:00 +1100
          Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-01 21:48 -0800
            Re: order independent hash? Lie Ryan <lie.1296@gmail.com> - 2011-12-05 00:40 +1100
          Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-01 21:48 -0800
            Re: order independent hash? Roel Schroeven <rschroev_nospam_ml@fastmail.fm> - 2011-12-04 14:41 +0100
              Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-04 07:39 -0800
                Re: order independent hash? Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-04 10:41 -0700
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-04 10:06 -0800
                Re: order independent hash? Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-04 13:13 -0700
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-04 15:17 -0800
                Re: order independent hash? Matt Joiner <anacrolix@gmail.com> - 2011-12-05 10:21 +1100
                Re: order independent hash? Ian Kelly <ian.g.kelly@gmail.com> - 2011-12-04 16:24 -0700
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-04 16:52 -0800
                Re: order independent hash? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-05 02:00 +0000
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-04 16:52 -0800
                Re: order independent hash? Lie Ryan <lie.1296@gmail.com> - 2011-12-05 12:59 +1100
                Re: order independent hash? Ethan Furman <ethan@stoneleaf.us> - 2011-12-04 18:08 -0800
                Re: order independent hash? Ben Finney <ben+python@benfinney.id.au> - 2011-12-05 15:52 +1100
                Re: order independent hash? Matt Joiner <anacrolix@gmail.com> - 2011-12-05 14:02 +1100
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-06 21:24 -0800
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-06 21:24 -0800
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-04 15:17 -0800
                Re: order independent hash? Terry Reedy <tjreedy@udel.edu> - 2011-12-04 19:28 -0500
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-04 10:06 -0800
          Re: order independent hash? Hrvoje Niksic <hniksic@xemacs.org> - 2011-12-02 10:53 +0100
            Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-02 03:48 -0800
            Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-02 09:00 -0800
            Re: order independent hash? Terry Reedy <tjreedy@udel.edu> - 2011-12-02 16:40 -0500
              Re: order independent hash? Hrvoje Niksic <hniksic@xemacs.org> - 2011-12-04 14:55 +0100
                Re: order independent hash? Chris Angelico <rosuav@gmail.com> - 2011-12-05 01:08 +1100
                Re: order independent hash? Hrvoje Niksic <hniksic@xemacs.org> - 2011-12-07 14:28 +0100
                Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-07 09:48 -0800
                Re: order independent hash? Tim Chase <python.list@tim.thechases.com> - 2011-12-04 12:57 -0600
                Re: order independent hash? Hrvoje Niksic <hniksic@xemacs.org> - 2011-12-08 10:30 +0100
                Re: order independent hash? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-09 11:27 +0000
                Re: order independent hash? Hrvoje Niksic <hniksic@xemacs.org> - 2011-12-09 17:51 +0100
                Re: order independent hash? Chris Angelico <rosuav@gmail.com> - 2011-12-10 04:13 +1100
                Re: order independent hash? Lie Ryan <lie.1296@gmail.com> - 2011-12-11 10:58 +1100
                Re: order independent hash? Chris Angelico <rosuav@gmail.com> - 2011-12-11 11:17 +1100
                Re: order independent hash? Lie Ryan <lie.1296@gmail.com> - 2011-12-11 14:04 +1100
        Re: order independent hash? Lie Ryan <lie.1296@gmail.com> - 2011-12-05 00:29 +1100
      Re: order independent hash? 88888 Dihedral <dihedral88888@googlemail.com> - 2011-12-01 20:29 -0800
      Re: order independent hash? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-12-02 04:33 +0000

csiph-web