Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!newsfeed.kpn.net!pfeed08.wxs.nl!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.011 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'path,': 0.07; 'brilliant': 0.09; 'tuple': 0.09; 'wrote:': 0.15; '2:18': 0.16; 'ideas?': 0.16; 'pathname': 0.16; 'ugly.': 0.16; 'cc:addr:python-list': 0.16; 'pm,': 0.16; 'subject:list': 0.16; 'seems': 0.20; 'cc:2**0': 0.21; 'loop': 0.22; 'cc:no real name:2**0': 0.22; 'header:In-Reply- To:1': 0.22; 'elegant': 0.23; 'loop,': 0.23; 'expect': 0.25; 'received:209.85.220': 0.25; '(or': 0.25; 'thu,': 0.28; 'message- id:@mail.gmail.com': 0.28; "skip:' 30": 0.29; 'cc:addr:python.org': 0.30; 'components,': 0.30; 'print': 0.32; 'list': 0.32; 'there': 0.34; 'quite': 0.34; "can't": 0.34; 'function.': 0.35; 'subject: ?': 0.35; 'skip:o 20': 0.36; 'some': 0.37; 'but': 0.37; 'received:google.com': 0.38; 'received:209.85': 0.38; 'subject:: ': 0.38; 'problem.': 0.38; 'should': 0.39; "there's": 0.39; 'received:209': 0.40; "i'd": 0.40; 'subject:skip:o 10': 0.84; 'something.': 0.91; 'faith': 0.96 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; bh=rSiHgyfSV/jrfHfM/XytJ2YwgwH62viZVkxSTkxuzhA=; b=lKySKt4hklk2uoj22nU2uOoPg/3wzQFs4ex5fMOXnJBwDki+SGOOH8h2v+jJk8zK0T WihuwqyLZPpKpUHWzSzxZi4EBhHgZFt8q56CbtXxMMLmaKF0wkG8ci0u1Xc3omAWDQvG SVkb7VA+aQs3mblPWpvt/KBxVsAeG5b33F1Hs= MIME-Version: 1.0 In-Reply-To: <1954d20a-7177-45d9-afa0-e98b171b2822@w27g2000yqk.googlegroups.com> References: <1954d20a-7177-45d9-afa0-e98b171b2822@w27g2000yqk.googlegroups.com> From: Ian Kelly Date: Thu, 28 Jul 2011 14:44:15 -0600 Subject: Re: list comprehension to do os.path.split_all ? To: gry Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: python-list@python.org X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 23 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1311885887 news.xs4all.nl 23884 [2001:888:2000:d::a6]:36112 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:10474 On Thu, Jul 28, 2011 at 2:18 PM, gry wrote: > [python 2.7] I have a (linux) pathname that I'd like to split > completely into a list of components, e.g.: > =A0 '/home/gyoung/hacks/pathhack/foo.py' =A0--> =A0['home', 'gyoung', > 'hacks', 'pathhack', 'foo.py'] > > os.path.split gives me a tuple of dirname,basename, but there's no > os.path.split_all function. > > I expect I can do this with some simple loop, but I have such faith in > the wonderfulness of list comprehensions, that it seems like there > should be a way to use them for an elegant solution of my problem. > I can't quite work it out. =A0Any brilliant ideas? =A0 (or other elegant > solutions to the problem?) path =3D '/home/gyoung/hacks/pathhack/foo.py' parts =3D [part for path, part in iter(lambda: os.path.split(path), ('/', '= '))] parts.reverse() print parts But that's horrendously ugly. Just write a generator with a while loop or something.