Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed1.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 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'subject:not': 0.03; 'string': 0.09; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'subject:Why': 0.09; 'subject:method': 0.09; '~ethan~': 0.09; 'rationale': 0.16; 'wrote:': 0.18; 'header:User-Agent:1': 0.23; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; "d'aprano": 0.31; 'steven': 0.31; 'guess': 0.33; 'knows': 0.35; 'add': 0.35; 'charset:us-ascii': 0.36; 'subject:?': 0.36; 'to:addr:python- list': 0.38; 'itself': 0.39; 'to:addr:python.org': 0.39; 'how': 0.40; 'received:173': 0.61; 'subject:have': 0.80 Date: Wed, 13 Aug 2014 10:27:08 -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: Why does str not have a __radd__ method? References: <53eb8b8a$0$6574$c3e8da3$5496439d@news.astraweb.com> In-Reply-To: <53eb8b8a$0$6574$c3e8da3$5496439d@news.astraweb.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit 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: 8 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1407950830 news.xs4all.nl 2863 [2001:888:2000:d::a6]:40500 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:76219 On 08/13/2014 09:00 AM, Steven D'Aprano wrote: > > What is the rationale for str not having __radd__ method? At a guess I would say because string only knows how to add itself to other strings, so __add__ is sufficient. -- ~Ethan~