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

Groups > comp.lang.python > #86296

Re: Design thought for callbacks

From Gregory Ewing <greg.ewing@canterbury.ac.nz>
Newsgroups comp.lang.python
Subject Re: Design thought for callbacks
Date 2015-02-24 18:45 +1300
Message-ID <cl2hfhFftgtU1@mid.individual.net> (permalink)
References (1 earlier) <mailman.18947.1424497301.18130.python-list@python.org> <54e8af1b$0$12976$c3e8da3$5496439d@news.astraweb.com> <mailman.18987.1424587462.18130.python-list@python.org> <cktoi3F7hlsU1@mid.individual.net> <mailman.19016.1424614976.18130.python-list@python.org>

Show all headers | View raw

Cem Karan wrote:
> On Feb 22, 2015, at 5:15 AM, Gregory Ewing <greg.ewing@canterbury.ac.nz>
> wrote:
> 
>> Perhaps instead of registering a callback function, you should be
>> registering the listener object together with a method name.
> 
> I see what you're saying, but I don't think it gains us too much.  If I store
> an object and an unbound method of the object, or if I store the bound method
> directly, I suspect it will yield approximately the same results.

It would be weird and unpythonic to have to register both
an object and an unbound method, and if you use a bound
method you can't keep a weak reference to it.

-- 
Greg

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

Thread

Re: Design thought for callbacks "Frank Millman" <frank@chagford.com> - 2015-02-21 07:41 +0200
  Re: Design thought for callbacks Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-02-22 03:15 +1100
    Re: Design thought for callbacks Marko Rauhamaa <marko@pacujo.net> - 2015-02-21 19:08 +0200
      Re: Design thought for callbacks Cem Karan <cfkaran2@gmail.com> - 2015-02-22 07:16 -0500
        Re: Design thought for callbacks Marko Rauhamaa <marko@pacujo.net> - 2015-02-22 14:46 +0200
          Re: Design thought for callbacks Cem Karan <cfkaran2@gmail.com> - 2015-02-22 09:17 -0500
      Re: Design thought for callbacks Laura Creighton <lac@openend.se> - 2015-02-22 13:52 +0100
      Re: Design thought for callbacks Cem Karan <cfkaran2@gmail.com> - 2015-02-22 09:10 -0500
    Re: Design thought for callbacks "Frank Millman" <frank@chagford.com> - 2015-02-22 08:44 +0200
      Re: Design thought for callbacks Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-02-22 23:15 +1300
        Re: Design thought for callbacks Cem Karan <cfkaran2@gmail.com> - 2015-02-22 09:22 -0500
          Re: Design thought for callbacks Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2015-02-24 18:45 +1300
            Re: Design thought for callbacks Cem Karan <cfkaran2@gmail.com> - 2015-02-24 06:06 -0500
        Re: Design thought for callbacks Ian Kelly <ian.g.kelly@gmail.com> - 2015-02-22 23:57 -0700

csiph-web