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

Groups > comp.lang.python > #79886

Re: What for -- for? (was A bug?)

Path csiph.com!usenet.pasdenom.info!dedibox.gegeweb.org!gegeweb.eu!nntpfeed.proxad.net!proxad.net!feeder1-1.proxad.net!hq-usenetpeers.eweka.nl!hq-usenetpeers.eweka.nl!bcyclone04.am1.xlned.com!bcyclone04.am1.xlned.com!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <zachary.ware@gmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.005
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'exercise': 0.04; 'importerror:': 0.07; 'subject: -- ': 0.07; 'subject:bug': 0.07; 'optimizing': 0.09; 'try:': 0.09; 'def': 0.12; 'collections': 0.16; 'loops': 0.16; 'subject:?)': 0.16; 'sure.': 0.16; 'sender:addr:gmail.com': 0.17; 'wrote:': 0.18; 'wed,': 0.18; 'import': 0.22; 'to:name:python-list@python.org': 0.22; 'header :In-Reply-To:1': 0.27; 'am,': 0.29; 'compared': 0.30; 'message- id:@mail.gmail.com': 0.30; 'class': 0.32; 'maybe': 0.34; 'except': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'filter': 0.38; 'skip:[ 10': 0.38; 'to:addr:python-list': 0.38; 'short': 0.38; 'to:addr:python.org': 0.39; 'first': 0.61; 'such': 0.63; 'map': 0.64; 'combining': 0.68; 'abc': 0.84; 'toy': 0.84
DKIM-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:content-type; bh=CeZQzuKfrZwO4+RJWwg/lFbvKAC3Wy7zS+xRmrCGDpk=; b=roULfmhHLDIFt1EokMBt8f9GWPDC/LNFFJai5Un37zYOwuzTNg8S3iTSS8JKaj8fCX hUWk0a0RhsK3SqxGcGA5afxu1fz+vEDaDE5G3gyKg2/85x4knETdI3dLKY3G3xmNDdFp /suKTM61gn6e/xoA6nG66UFRzJB+g5pnd1NWE0Braf0997uQsaKSqs3voU5CwOKfv5O1 eDyhPf3e7/IJGd8FAV/hgLQfONdaXRCNL9dmc+tWgCvAQwe1ByaOXT72+BJkfeQosUE9 JN6UEHRJ9sIMxB8qP79l95T54yvE+ywvtv85NwRZv2L1gxnOxc5+G4WwWq9wXdbRYgMn 0H2A==
X-Received by 10.202.203.149 with SMTP id b143mr477614oig.60.1414561191834; Tue, 28 Oct 2014 22:39:51 -0700 (PDT)
MIME-Version 1.0
Sender zachary.ware@gmail.com
In-Reply-To <ed95d533-c4db-4081-bd32-61a93aaf797c@googlegroups.com>
References <f491d969-7405-4017-b9c4-e1cb52a70280@googlegroups.com> <m2mof5$hvh$2@dont-email.me> <mailman.15248.1414459811.18130.python-list@python.org> <m2pinn$hum$2@dont-email.me> <94e3143a-c9ab-433d-8b3d-6ab296de14d9@googlegroups.com> <CAKJDb-PEj4UWpFFTvJN_gh-AOTHJwS0D7+_WUdeLkWyQ-KsQVg@mail.gmail.com> <mailman.15282.1414556609.18130.python-list@python.org> <593c0099-770f-48cd-b7ba-22154b00f130@googlegroups.com> <mailman.15283.1414558776.18130.python-list@python.org> <ed95d533-c4db-4081-bd32-61a93aaf797c@googlegroups.com>
From Zachary Ware <zachary.ware+pylist@gmail.com>
Date Wed, 29 Oct 2014 00:39:31 -0500
X-Google-Sender-Auth YuM9bHz_kDh1MGTQKsc30GDLs4Q
Subject Re: What for -- for? (was A bug?)
To "python-list@python.org" <python-list@python.org>
Content-Type text/plain; charset=UTF-8
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.15285.1414561194.18130.python-list@python.org> (permalink)
Lines 30
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1414561194 news.xs4all.nl 2872 [2001:888:2000:d::a6]:49156
X-Complaints-To abuse@xs4all.nl
X-Received-Body-CRC 1447942292
X-Received-Bytes 4553
Xref csiph.com comp.lang.python:79886

Show key headers only | View raw

On Wed, Oct 29, 2014 at 12:15 AM, Rustom Mody <rustompmody@gmail.com> wrote:
> Maybe nicer to filter out the false's with a filter-false thus??
>
> def ff(d): return [n for n in d if d[n]]

Sure.  Or, combining things:

try:
    from collections import abc
except ImportError:
    import collections as abc
from abc import ABCMeta

abcs = [o for o in vars(abc).values() if isinstance(o, ABCMeta)]

def get_abcs(cls):
    return [abc for abc in abcs if issubclass(cls, abc)]

def get_abc_names(cls):
    return [abc.__name__ for abc in get_abcs(cls)]



Of course, that's 3 (progressively shorter) loops to get the names of
the ABCs of a class compared to 1 (fairly short in the first place)
loop for a map of relationships to all available ABCs, but optimizing
such a toy as this would just be an exercise in futility :)

-- 
Zach

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

Thread

A bug? "umatrp@gmail.com" <trsexgl@gmail.com> - 2014-10-27 09:01 -0700
  Re: A bug? Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2014-10-27 17:17 +0100
  Re: A bug? Ian Kelly <ian.g.kelly@gmail.com> - 2014-10-27 10:26 -0600
  Re: A bug? Denis McMahon <denismfmcmahon@gmail.com> - 2014-10-28 00:36 +0000
    Re: A bug? Rustom Mody <rustompmody@gmail.com> - 2014-10-27 18:12 -0700
      Re: A bug? Chris Angelico <rosuav@gmail.com> - 2014-10-28 12:25 +1100
        Re: A bug? Rustom Mody <rustompmody@gmail.com> - 2014-10-27 19:13 -0700
    Re: A bug? Joshua Landau <joshua@landau.ws> - 2014-10-28 01:29 +0000
      Re: A bug? Denis McMahon <denismfmcmahon@gmail.com> - 2014-10-29 02:17 +0000
        What for -- for?  (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 20:22 -0700
          Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-28 23:16 -0500
          Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-28 23:23 -0500
            Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 21:40 -0700
              Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-28 23:59 -0500
                Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 22:15 -0700
                Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-29 00:39 -0500
                Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 23:11 -0700
                Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-29 01:18 -0500
                Finding way around ABCs (was What for -- for? (was A bug?)) Rustom Mody <rustompmody@gmail.com> - 2014-10-30 10:01 -0700
                Re: Finding way around ABCs (was What for -- for? (was A bug?)) Ian Kelly <ian.g.kelly@gmail.com> - 2014-10-30 11:09 -0600
                Re: Finding way around ABCs (was What for -- for? (was A bug?)) Rustom Mody <rustompmody@gmail.com> - 2014-10-30 10:16 -0700
                Re: Finding way around ABCs (was What for -- for? (was A bug?)) Ian Kelly <ian.g.kelly@gmail.com> - 2014-10-30 11:11 -0600
          Re: What for -- for? (was A bug?) Ben Finney <ben+python@benfinney.id.au> - 2014-10-29 16:27 +1100
          Re: What for -- for? (was A bug?) Zachary Ware <zachary.ware+pylist@gmail.com> - 2014-10-29 00:42 -0500
            Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-28 22:57 -0700
          Re: What for -- for? (was A bug?) Ben Finney <ben+python@benfinney.id.au> - 2014-10-29 17:02 +1100
          Re: What for -- for? (was A bug?) Joshua Landau <joshua@landau.ws> - 2014-10-30 17:21 +0000
            Re: What for -- for? (was A bug?) Rustom Mody <rustompmody@gmail.com> - 2014-10-30 10:41 -0700

csiph-web