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

Groups > comp.lang.python > #80352

Re: [Python-Dev] Dinamically set __call__ method

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!us.feeder.erje.net!news2.arglkargh.de!newsfeed.fsmpi.rwth-aachen.de!weretis.net!feeder4.news.weretis.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed3a.news.xs4all.nl!xs4all!news.tele.dk!news.tele.dk!small.news.tele.dk!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 0.001
X-Spam-Evidence '*H*': 1.00; '*S*': 0.00; 'subject:: [': 0.04; 'subject:Python': 0.06; 'definition,': 0.09; 'function,': 0.09; 'instance.': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:method': 0.09; 'subject:set': 0.09; '+1.': 0.16; 'descriptor': 0.16; 'factory,': 0.16; 'overriding': 0.16; 'received:80.91.229.3': 0.16; 'received:dip0.t-ipconnect.de': 0.16; 'received:plane.gmane.org': 0.16; 'received:t-ipconnect.de': 0.16; 'subject:Dev': 0.16; 'wrote:': 0.18; 'subject:] ': 0.20; 'creating': 0.23; 'header:User-Agent:1': 0.23; 'instance,': 0.24; 'looks': 0.24; 'header:X-Complaints-To:1': 0.27; 'function': 0.29; 'correct': 0.29; 'possibility': 0.29; 'writes:': 0.31; 'class': 0.32; 'implemented': 0.33; 'really': 0.36; 'method': 0.36; 'charset:us-ascii': 0.36; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'either': 0.39; 'received:org': 0.40; 'john': 0.61; 'received:217': 0.63; 'real': 0.63; 'different': 0.65; 'within': 0.65; 'ethan': 0.84; 'furman': 0.84; 'positively': 0.84; 'absolutely': 0.87
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From dieter <dieter@handshake.de>
Subject Re: [Python-Dev] Dinamically set __call__ method
Date Fri, 07 Nov 2014 07:59:56 +0100
References <CAF0TK51TKs+tw=u_rzrWVeSsDK7cOBt1Gcvq_izLfMObuDYNig@mail.gmail.com> <545919B6.7040007@stoneleaf.us> <CAF0TK52vw_SmqexN8RXyGs8GSKecPobK54ZqYPyKgRSSJy9zWw@mail.gmail.com> <mailman.15467.1415128339.18130.python-list@python.org> <c25aa612-bff2-4982-8fb9-5b17a866bead@googlegroups.com>
Mime-Version 1.0
Content-Type text/plain; charset=us-ascii
X-Gmane-NNTP-Posting-Host pd9e0a3cf.dip0.t-ipconnect.de
User-Agent Gnus/5.1008 (Gnus v5.10.8) XEmacs/21.4.22 (linux)
Cancel-Lock sha1:RowauwFJn91wi1WQi3QHiQ2vGRs=
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.15555.1415343612.18130.python-list@python.org> (permalink)
Lines 14
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1415343612 news.xs4all.nl 2969 [2001:888:2000:d::a6]:37720
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:80352

Show key headers only | View raw

John Ladasky <john_ladasky@sbcglobal.net> writes:

> On Tuesday, November 4, 2014 11:12:31 AM UTC-8, Ethan Furman wrote:
>
>> If you really absolutely positively have to have the signature be correct for each instance, you may to either look at a 
>> function creating factory, a class creating factory, or a meta-class.
>
> +1.  Overriding __call__() within the class definition, over and over again, with different function, looks awkward to me.

A possibility to get the original approach implemented looks like:

  make "__call__" a descriptor on the class which looks up the real
  method on the instance.

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

Thread

Re: [Python-Dev] Dinamically set __call__ method Ethan Furman <ethan@stoneleaf.us> - 2014-11-04 11:12 -0800
  Re: [Python-Dev] Dinamically set __call__ method John Ladasky <john_ladasky@sbcglobal.net> - 2014-11-06 12:21 -0800
    Re: [Python-Dev] Dinamically set __call__ method dieter <dieter@handshake.de> - 2014-11-07 07:59 +0100
    Re: [Python-Dev] Dinamically set __call__ method Ethan Furman <ethan@stoneleaf.us> - 2014-11-07 04:58 -0800
    Re: [Python-Dev] Dinamically set __call__ method dieter <dieter@handshake.de> - 2014-11-08 07:50 +0100
    Re: [Python-Dev] Dinamically set __call__ method Ethan Furman <ethan@stoneleaf.us> - 2014-11-08 11:49 -0800
      Re: [Python-Dev] Dinamically set __call__ method Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-11-09 11:31 +1300
        Re: [Python-Dev] Dinamically set __call__ method Ethan Furman <ethan@stoneleaf.us> - 2014-11-08 19:27 -0800
          Re: [Python-Dev] Dinamically set __call__ method Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-11-10 00:38 +1300
            Re: [Python-Dev] Dinamically set __call__ method Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-11-10 00:14 +1100
            Re: [Python-Dev] Dinamically set __call__ method Ethan Furman <ethan@stoneleaf.us> - 2014-11-09 12:16 -0800
        Re: [Python-Dev] Dinamically set __call__ method Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-11 00:43 -0700
        Re: [Python-Dev] Dinamically set __call__ method Fabio Zadrozny <fabiofz@gmail.com> - 2014-11-12 13:33 -0200
          Re: [Python-Dev] Dinamically set __call__ method Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-11-13 17:20 +1300
            Re: [Python-Dev] Dinamically set __call__ method Fabio Zadrozny <fabiofz@gmail.com> - 2014-11-13 11:38 -0200
        Re: [Python-Dev] Dinamically set __call__ method Ian Kelly <ian.g.kelly@gmail.com> - 2014-11-12 11:58 -0700

csiph-web