Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!xlned.com!feeder1.xlned.com!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!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 0.008 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'else:': 0.03; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'seemed': 0.09; '~ethan~': 0.09; 'def': 0.12; 'for,': 0.16; 'len(other):': 0.16; 'len(self)': 0.16; 'received:gateway01.websitewelcome.com': 0.16; 'subject:operators': 0.16; 'sat,': 0.16; 'wrote:': 0.18; 'seems': 0.21; 'header:User-Agent:1': 0.23; 'header:In-Reply-To:1': 0.27; 'chris': 0.29; 'list:': 0.30; "i'm": 0.30; 'breaking': 0.31; 'class': 0.32; 'false': 0.36; 'charset:us-ascii': 0.36; 'to:addr :python-list': 0.38; 'pm,': 0.38; 'little': 0.38; '12,': 0.39; 'to:addr:python.org': 0.39; 'break': 0.61; 'received:173': 0.61; 'show': 0.63; 'received:69.56': 0.68; 'jul': 0.74; 'ethan': 0.84; 'furman': 0.84; 'subject:Proposal': 0.91 Date: Fri, 11 Jul 2014 23:53:49 -0700 From: Ethan Furman User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121010 Thunderbird/16.0.1 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Proposal: === and !=== operators References: <53bce8a3$0$2746$c3e8da3$76491128@news.astraweb.com> <53c0abe8$0$9505$c3e8da3$5496439d@news.astraweb.com> <53C0D199.8070804@stoneleaf.us> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator3304.hostgator.com X-AntiAbuse: Original Domain - python.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - stoneleaf.us X-BWhitelist: no X-Source-IP: 173.12.184.233 X-Exim-ID: 1X5rBs-0002Hx-RA X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([173.12.184.233]) [173.12.184.233]:38942 X-Source-Auth: ethan+stoneleaf.us X-Email-Count: 3 X-Source-Cap: dG9idWs7dG9idWs7Z2F0b3IzMzA0Lmhvc3RnYXRvci5jb20= 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: 21 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1405149423 news.xs4all.nl 2933 [2001:888:2000:d::a6]:47956 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:74376 On 07/11/2014 11:39 PM, Chris Angelico wrote: > On Sat, Jul 12, 2014 at 4:11 PM, Ethan Furman wrote: >> class list: >> def __eq__(self, other): >> if len(self) != len(other): >> return False >> for this, that in zip(self, other): >> if this is that or this == that: >> continue >> break >> else: >> return True >> return False > > Seems a little elaborate. Why not just return straight from the loop, > instead of breaking and using else? :) Because I'm tired, and it seemed like a good excuse to show else with for, and because I'm tired. :) -- ~Ethan~