Path: csiph.com!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!newsfeed.eweka.nl!eweka.nl!feeder3.eweka.nl!newsfeed.xs4all.nl!newsfeed5.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 0.018 X-Spam-Evidence: '*H*': 0.96; '*S*': 0.00; 'subject:Python': 0.05; 'mrab': 0.05; 'semantics': 0.09; 'sat,': 0.15; 'from:addr:mrabarnett.plus.com': 0.16; 'from:addr:python': 0.16; 'from:name:mrab': 0.16; 'message-id:@mrabarnett.plus.com': 0.16; 'received:84.93': 0.16; 'received:84.93.230': 0.16; 'sorts': 0.16; 'subject:ever': 0.16; 'subject:program': 0.16; 'wrote:': 0.17; '>>>': 0.18; 'input': 0.18; 'header:In-Reply-To:1': 0.25; 'header :User-Agent:1': 0.26; '+0100,': 0.29; "d'aprano": 0.29; 'received:192.168.1.3': 0.29; 'steven': 0.29; 'function': 0.30; 'received:84': 0.32; 'to:addr:python-list': 0.33; 'list': 0.35; 'same.': 0.35; 'list.': 0.35; 'method': 0.36; 'subject:: ': 0.38; 'skip:l 20': 0.38; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'short': 0.39; 'received:192.168': 0.40; 'subject:, ': 0.61; 'jul': 0.65; 'header:Reply-To:1': 0.68; 'reply-to:no real name:2**0': 0.72; 'different.': 0.84; 'reply-to:addr:python.org': 0.84; 'subtly': 0.84; 'kat': 0.91 X-CM-Score: 0.00 X-CNFS-Analysis: v=2.0 cv=FLuZNpUs c=1 sm=1 a=0nF1XD0wxitMEM03M9B4ZQ==:17 a=DKcI9XZsuF4A:10 a=d7ezg7mMz5sA:10 a=ihvODaAuJD4A:10 a=OUOv7kDek9cA:10 a=8nJEP1OIZ-IA:10 a=EBOSESyhAAAA:8 a=8AHkEIZyAAAA:8 a=L7n3uNZHAgj3HYcKYFMA:9 a=wPNLvfGTeEIA:10 a=0nF1XD0wxitMEM03M9B4ZQ==:117 X-AUTH: mrabarnett:2500 Date: Sun, 22 Jul 2012 02:56:20 +0100 From: MRAB User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20120713 Thunderbird/14.0 MIME-Version: 1.0 To: python-list@python.org Subject: Re: My first ever Python program, comments welcome References: <500b4a27$0$29978$c3e8da3$5496439d@news.astraweb.com> In-Reply-To: <500b4a27$0$29978$c3e8da3$5496439d@news.astraweb.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: python-list@python.org 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: 19 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1342922179 news.xs4all.nl 6898 [2001:888:2000:d::a6]:44797 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:25790 On 22/07/2012 01:32, Steven D'Aprano wrote: > On Sat, 21 Jul 2012 20:40:46 +0100, MRAB wrote: > >> On 21/07/2012 20:08, Lipska the Kat wrote: >>> l=sorted(l, key=itemgetter(0)) >> >> Short is: >> >> l.sort(key=itemgetter(0)) > > Shorter, and the semantics are subtly different. > > The sorted function returns a copy of the input list. > > The list.sort method sorts the list in place. > Since the result is bound to the original name, the result is the same.