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

Groups > comp.lang.python > #6426

Re: Python's super() considered super!

Path csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!feeder.news-service.com!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <rosuav@gmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.007
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'classes.': 0.05; 'subject:Python': 0.06; 'dictionary': 0.07; 'inclined': 0.09; 'kelly': 0.09; 'am,': 0.14; 'wrote:': 0.14; 'angelico': 0.16; "else's": 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'non-trivial': 0.16; 'so...': 0.16; 'subject:() ': 0.16; 'subject:considered': 0.16; 'header:In-Reply-To:1': 0.21; 'seems': 0.21; 'received:209.85.210.174': 0.23; 'received:mail- iy0-f174.google.com': 0.23; 'classes': 0.26; 'example': 0.27; 'message-id:@mail.gmail.com': 0.28; 'manually': 0.29; 'sat,': 0.29; 'code,': 0.29; 'implement': 0.30; "won't": 0.30; 'anyone': 0.32; 'someone': 0.33; 'to:addr:python-list': 0.33; 'things': 0.33; "i've": 0.33; 'chris': 0.34; 'there': 0.35; 'not,': 0.35; 'certain': 0.36; 'received:google.com': 0.37; 'useful': 0.37; 'received:209.85': 0.37; 'case': 0.37; 'tool': 0.38; 'but': 0.38; 'authors': 0.38; 'subject:: ': 0.38; 'received:209': 0.39; 'to:addr:python.org': 0.39; 'subject:!': 0.67; 'offer': 0.71; 'risk': 0.75; 'cooperation': 0.84; 'break.': 0.84; 'everything,': 0.84
DKIM-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=wlMTFbPLZlohWizy9fgAAnmTHJC4q4Nn1Y/9sO9dTLY=; b=qWQnHOFkQEDqOr6tL2l/ih7XXxRa/WQhCfUmHLHLrtq63p1D3PJbLan6myHhPMvU6M h/tAZO40S7KTkW9y+Y/xfgQTll5aXW7he2QKlzUI+8xHgcbaXPWJKB3O5lLzE7vhwvs1 cp1dM7DRXAIvtk9x4rRoXLSevHtz5vrMhPf7Q=
DomainKey-Signature a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=CIdsbVBqtRswnCOfZHNR9/VycnttKiEFd4xNUWg8io1Ph21rFLlTpc2gvFP7WiUYRD fAbe/A3/ONhHU//Bkb7qL40Ep6ZosjIxlbpEm5414U5sRnzCVGZAI5liEIaU4BHFJvWR QlsEjN+szuyrtWLYBK7BX3XayF1d4LMp5BZvc=
MIME-Version 1.0
In-Reply-To <BANLkTik=PWKMJCC99RHGi6hzo1VCzJ2zuw@mail.gmail.com>
References <1f0d88bd-e2e6-4780-9d9e-784fb3f53837@k3g2000prl.googlegroups.com> <BANLkTik=PWKMJCC99RHGi6hzo1VCzJ2zuw@mail.gmail.com>
Date Sat, 28 May 2011 04:46:12 +1000
Subject Re: Python's super() considered super!
From Chris Angelico <rosuav@gmail.com>
To python-list@python.org
Content-Type text/plain; charset=ISO-8859-1
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.12
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.2167.1306521975.9059.python-list@python.org> (permalink)
Lines 16
NNTP-Posting-Host 82.94.164.166
X-Trace 1306521975 news.xs4all.nl 49175 [::ffff:82.94.164.166]:36046
X-Complaints-To abuse@xs4all.nl
Xref x330-a1.tempe.blueboxinc.net comp.lang.python:6426

Show key headers only | View raw

On Sat, May 28, 2011 at 4:31 AM, Ian Kelly <ian.g.kelly@gmail.com> wrote:
> It seems to me that the example of combining built-in dictionary
> classes is naively optimistic.

So... Can anyone offer a non-trivial example of multiple inheritance
that *doesn't* have pitfalls? From what I've seen, MI always seems to
require cooperation from the authors of all involved classes. It may
be a useful tool when you control everything, but whenever you use
someone else's code, there seems to be this massive barrier of risk
(if that makes sense). For the DefaultOrderedCounter, I would be
strongly inclined to inherit singly, and then manually implement the
other half (whichever half is easier); in this case that happens to be
trivial (override __missing__), but even were it not, it would be a
means of being certain that things won't break.

Chris Angelico

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

Thread

Python's super() considered super! Raymond Hettinger <python@rcn.com> - 2011-05-26 09:31 -0700
  Re: Python's super() considered super! Raymond Hettinger <python@rcn.com> - 2011-05-26 09:39 -0700
    Re: Python's super() considered super! Dotan Cohen <dotancohen@gmail.com> - 2011-05-26 21:13 +0300
    Re: Python's super() considered super! Ian Kelly <ian.g.kelly@gmail.com> - 2011-05-26 12:38 -0600
    Re: Python's super() considered super! Dotan Cohen <dotancohen@gmail.com> - 2011-05-26 21:56 +0300
    Re: Python's super() considered super! Terry Reedy <tjreedy@udel.edu> - 2011-05-26 16:15 -0400
  Re: Python's super() considered super! Ben Finney <ben+python@benfinney.id.au> - 2011-05-27 11:39 +1000
    Re: Python's super() considered super! Raymond Hettinger <python@rcn.com> - 2011-05-27 00:16 -0700
      Re: Python's super() considered super! Ben Finney <ben+python@benfinney.id.au> - 2011-05-27 18:49 +1000
        Re: Python's super() considered super! Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-27 10:37 +0000
          Re: Python's super() considered super! Duncan Booth <duncan.booth@invalid.invalid> - 2011-05-27 10:53 +0000
            Re: Python's super() considered super! Ethan Furman <ethan@stoneleaf.us> - 2011-05-27 10:42 -0700
              Re: Python's super() considered super! Duncan Booth <duncan.booth@invalid.invalid> - 2011-05-30 09:18 +0000
    RE: Python's super() considered super! "Prasad, Ramit" <ramit.prasad@jpmchase.com> - 2011-05-27 14:10 -0400
    Re: Python's super() considered super! Chris Angelico <rosuav@gmail.com> - 2011-05-28 04:40 +1000
  Re: Python's super() considered super! sturlamolden <sturlamolden@yahoo.no> - 2011-05-27 07:27 -0700
    Re: Python's super() considered super! Mel <mwilson@the-wire.com> - 2011-05-27 10:33 -0400
      Re: Python's super() considered super! Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-27 14:49 +0000
        Re: Python's super() considered super! harrismh777 <harrismh777@charter.net> - 2011-05-27 10:07 -0500
    Re: Python's super() considered super! Duncan Booth <duncan.booth@invalid.invalid> - 2011-05-27 15:05 +0000
      Re: Python's super() considered super! sturlamolden <sturlamolden@yahoo.no> - 2011-05-27 08:24 -0700
      Re: Python's super() considered super! sturlamolden <sturlamolden@yahoo.no> - 2011-05-27 08:31 -0700
        Re: Python's super() considered super! Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-05-27 16:06 +0000
          Re: Python's super() considered super! Stefan Behnel <stefan_ml@behnel.de> - 2011-05-27 23:49 +0200
            Re: Python's super() considered super! sturlamolden <sturlamolden@yahoo.no> - 2011-05-27 16:57 -0700
              Re: Python's super() considered super! Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> - 2011-05-28 07:29 +0200
          Re: Python's super() considered super! sturlamolden <sturlamolden@yahoo.no> - 2011-05-27 17:04 -0700
      Re: Python's super() considered super! Ryan Kelly <ryan@rfk.id.au> - 2011-05-28 09:57 +1000
    Re: Python's super() considered super! sturlamolden <sturlamolden@yahoo.no> - 2011-05-27 08:11 -0700
  Re: Python's super() considered super! Ian Kelly <ian.g.kelly@gmail.com> - 2011-05-27 12:31 -0600
  Re: Python's super() considered super! Chris Angelico <rosuav@gmail.com> - 2011-05-28 04:46 +1000
    Re: Python's super() considered super! John Nagle <nagle@animats.com> - 2011-05-27 13:47 -0700
  Re: Python's super() considered super! Ethan Furman <ethan@stoneleaf.us> - 2011-05-27 15:24 -0700

csiph-web