Re: skipping init and using exploiting a class member instead

Path	csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed2.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 0.001
X-Spam-Evidence	'H': 1.00; 'S': 0.00; '21,': 0.07; 'c++,': 0.07; 'assumed': 0.09; 'constructor': 0.09; 'derived': 0.09; 'overwrite': 0.09; 'subject:using': 0.09; 'c++.': 0.16; 'called,': 0.16; 'called.': 0.16; 'forbid': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'overwriting': 0.16; 'subclass': 0.16; 'subject:class': 0.16; 'subject:member': 0.16; 'language': 0.16; 'wrote:': 0.18; 'certainly': 0.24; 'own.': 0.24; 'mon,': 0.24; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; 'message- id:@mail.gmail.com': 0.30; 'apparently': 0.31; 'minor': 0.31; 'religious': 0.31; 'class': 0.32; 'worked': 0.33; 'board': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'add': 0.35; 'c++': 0.36; 'project': 0.37; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'simply': 0.61; 'informed': 0.78; "class's": 0.84; '2013': 0.98
DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=RAxuF0WhvVSqgg7o4bMcjU5HvE56QKsLoEZWWr30RTc=; b=UaN7+Aor5Nev4tNk6p8t2YBOD/2E5z9E2/3ZHYSj9rzfu9KSUwe+ODr7WRSi6Swsc2 Zale/lc9M1ou3rZQS8PcK/nYKphziiPqjK0ObSiOzglmws+y/qS7oVde3XoL7UeMvm2s QEblvJv0uoA8LNNpg5PqyfFWG/uuWxi9mj9Y5/AMRqCw/ZiHJA4cosTM5diyzM9XwjlH LazD7Jmzw4CEYiu7g6sfIWfl7DBIoPICU9qLkgUkTd0Flt8/jnoFDeOBBbIUe3exNq3p v/bC9kgFSbkl2fOJ0ZqpVSIm/m4HjwojtDqXNkxUPbaFVQIOn46slB+3O609QCXOKy9r dzNQ==
MIME-Version	1.0
X-Received	by 10.68.108.3 with SMTP id hg3mr14093161pbb.91.1382302674003; Sun, 20 Oct 2013 13:57:54 -0700 (PDT)
In-Reply-To	<0e9b51a9-bd78-4d34-b277-c463347e8e02@googlegroups.com>
References	<fb1b5b6f-619c-4acd-b1bf-a375ccc6f1a6@googlegroups.com> <0e9b51a9-bd78-4d34-b277-c463347e8e02@googlegroups.com>
Date	Mon, 21 Oct 2013 07:57:53 +1100
Subject	Re: skipping __init__ and using exploiting a class member instead
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	2.1.15
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.1288.1382302684.18130.python-list@python.org> (permalink)
Lines	13
NNTP-Posting-Host	2001:888:2000:d::a6
X-Trace	1382302685 news.xs4all.nl 15950 [2001:888:2000:d::a6]:60737
X-Complaints-To	abuse@xs4all.nl
Xref	csiph.com comp.lang.python:57156

Show key headers only | View raw

On Mon, Oct 21, 2013 at 4:57 AM, Peter Cacioppi
<peter.cacioppi@gmail.com> wrote:
>>  You certainly don't have to write a constructor for a subclass in C++.
>
> Ahh, this message board is so collectively well informed (once you get past the trolls)
>
> The C++ project I worked on was religious about always overwriting parent class constructors. I had assumed this was because the language proper forbid it, but apparently it was just project protocol.

Minor point: In C++, you don't overwrite constructors; you simply add
your own. By the time a derived class's constructor is called, the
parents' have all already been called.

ChrisA

Thread

skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-19 14:44 -0700
  Re: skipping __init__ and using exploiting a class member instead Ned Batchelder <ned@nedbatchelder.com> - 2013-10-19 17:55 -0400
  Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-19 15:11 -0700
  Re: skipping __init__ and using exploiting a class member instead Robert Kern <robert.kern@gmail.com> - 2013-10-19 23:18 +0100
  Re: skipping __init__ and using exploiting a class member instead Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-10-19 22:30 +0000
  Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-19 17:07 -0700
  Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-19 17:42 -0700
    Re: skipping __init__ and using exploiting a class member instead Ned Batchelder <ned@nedbatchelder.com> - 2013-10-19 21:13 -0400
    Detecting whether a value was passed for a parameter (was: skipping __init__ and using exploiting a class member instead) Ben Finney <ben+python@benfinney.id.au> - 2013-10-20 22:50 +1100
  Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-20 00:09 -0700
    Re: skipping __init__ and using exploiting a class member instead Roy Smith <roy@panix.com> - 2013-10-20 08:55 -0400
    Re: skipping __init__ and using exploiting a class member instead Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-10-20 14:16 +0100
  Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-20 01:46 -0700
  Re: skipping __init__ and using exploiting a class member instead Devin Jeanpierre <jeanpierreda@gmail.com> - 2013-10-20 07:27 -0700
  Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-20 10:57 -0700
    Re: skipping __init__ and using exploiting a class member instead Roy Smith <roy@panix.com> - 2013-10-20 16:44 -0400
    Re: skipping __init__ and using exploiting a class member instead Chris Angelico <rosuav@gmail.com> - 2013-10-21 07:57 +1100
      Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-20 14:34 -0700
        Re: skipping __init__ and using exploiting a class member instead Roy Smith <roy@panix.com> - 2013-10-20 18:31 -0400
          Re: skipping __init__ and using exploiting a class member instead Ben Finney <ben+python@benfinney.id.au> - 2013-10-21 10:55 +1100
            Re: skipping __init__ and using exploiting a class member instead Neil Cerutti <neilc@norwich.edu> - 2013-10-21 18:47 +0000
  Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-20 21:30 -0700
  Re: skipping __init__ and using exploiting a class member instead Peter Cacioppi <peter.cacioppi@gmail.com> - 2013-10-20 21:31 -0700
    Re: skipping __init__ and using exploiting a class member instead feedthetroll@gmx.de - 2013-10-21 00:16 -0700

csiph-web