Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!news2.arglkargh.de!diablo1.news.osn.de!news.osn.de!diablo2.news.osn.de!news.tele.dk!news.tele.dk!small.news.tele.dk!newsgate.cistron.nl!newsgate.news.xs4all.nl!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 0.013 X-Spam-Evidence: '*H*': 0.97; '*S*': 0.00; 'tree': 0.05; 'list?': 0.07; 'iterate': 0.09; 'cc:addr:python-list': 0.11; 'jan': 0.12; 'rarely': 0.16; 'sorting': 0.16; 'wrote:': 0.18; 'cc:addr:python.org': 0.22; 'cc:2**0': 0.24; 'order.': 0.26; 'header:In-Reply-To:1': 0.27; 'function': 0.29; 'chris': 0.29; 'am,': 0.29; 'subject:list': 0.30; 'message-id:@mail.gmail.com': 0.30; 'idea,': 0.31; 'lists': 0.32; 'probably': 0.32; 'run': 0.32; 'fri,': 0.33; 'subject:with': 0.35; 'received:google.com': 0.35; 'there': 0.35; 'that,': 0.38; 'to:addr:gmail.com': 0.65; 'worth': 0.66; 'dict.': 0.84 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 :cc:content-type; bh=/8SNBOqmXH3kmkSZr8hgTbTLbBuCI9yWE40hs63DoYk=; b=ek5TfnkbthZoXAErMu0C8WAH76g7da445ijONHkm1N6T649Ovg9HoHPuAxEsL8spqO K/WsS3TmRe1PU0xbIR0GOs0zaLrMB1602pLdBHDLVStG2OIoFyLPLY2lzE8ECG1acajX bfwRXaV4SO0ECIsc6kgN3IjpZvdF/VyDj5HPnr9QHa8WYUwCRRieGIXXVeZkOZ3+uMWL P6wZG63tnED8E1Z8e37Fbn/1P5HaPmZDB7cwkLUxz9x9dZTImqoWyufj3Vb2c8A16Rn1 IUgI8sIZnr1oOpSsPHcyBS7cDy632fO07MN3CINRraGIHPE9KTnh4EsvJzPqwJRn9XS/ gKWQ== MIME-Version: 1.0 X-Received: by 10.180.77.49 with SMTP id p17mr4109169wiw.30.1388804301645; Fri, 03 Jan 2014 18:58:21 -0800 (PST) In-Reply-To: References: Date: Fri, 3 Jan 2014 18:58:21 -0800 Subject: Re: Creating a list with holes From: Dan Stromberg To: Chris Angelico Content-Type: text/plain; charset=ISO-8859-1 Cc: "python-list@python.org" X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 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: 10 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1388804309 news.xs4all.nl 2881 [2001:888:2000:d::a6]:35599 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:63100 On Fri, Jan 3, 2014 at 7:37 AM, Chris Angelico wrote: > Depending on what exactly you need, it's probably worth just using a > dict. In what ways do you need it to function as a list? You can > always iterate over sorted(some_dict.keys()) if you need to run > through them in order. FWIW, sorting inside a loop is rarely a good idea, unless your lists are pretty small. For that, there are many tree datastructures available.