Path: csiph.com!usenet.pasdenom.info!news.albasani.net!newsfeed.freenet.ag!news2.euro.net!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 0.062 X-Spam-Evidence: '*H*': 0.88; '*S*': 0.00; 'subject:Python': 0.05; 'result,': 0.05; 'def': 0.10; 'argument)': 0.16; 'oct': 0.16; 'wrote:': 0.17; 'header:In-Reply-To:1': 0.25; 'message- id:@mail.gmail.com': 0.27; 'fri,': 0.30; 'url:2012': 0.30; 'to:addr:python-list': 0.33; 'received:google.com': 0.34; 'pm,': 0.35; 'received:209.85': 0.35; 'subject:" ': 0.36; 'url:in': 0.37; 'received:209': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'header:Received:5': 0.40; 'your': 0.60; 'url:blogspot': 0.64; 'url:10': 0.65; 'special': 0.73; 'to:name:python': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=q7O/IjnOxlWKUjXjsgb7IPnItLFMspHclri/zj/ijps=; b=Y4Fgzr3jCHiK3MuV9ijh3hO2FIofTCzZIMrFTlBse/efuZBkhc75v77LTA20Ilvd24 dp52gVh/0Y9R13rnMb3Rz4uZB+Avdk5W05i7hZlArS3iUsmYSsc7dfgQ3FB7Fp+01oUG miwQ6VnxYLS2qjKoB1wIh8UjWAaZ0Z1gH4zMyZMg9GfJxBDs0dSRsY7gDGGWRrddYq3A 0bXIjAwnzsKq48ZZNEGcMBNP6/yxEQnoGqiPPgTMECrQkiYm2DnFL5X5IjVN3F9TDAar 7hPNoHrKO6jFmWORjfqOohg9MHFGJ1wuKS7EYfL7iPsu7oTcCKNQi13qwEqnytMv5rUB iP1g== MIME-Version: 1.0 In-Reply-To: <727ec5d8-d292-4012-ba87-da77a1040c6a@googlegroups.com> References: <727ec5d8-d292-4012-ba87-da77a1040c6a@googlegroups.com> From: Ian Kelly Date: Fri, 5 Oct 2012 15:31:35 -0600 Subject: Re: fmap(), "inverse" of Python map() function To: Python Content-Type: text/plain; charset=ISO-8859-1 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: 1349472728 news.xs4all.nl 6925 [2001:888:2000:d::a6]:50598 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:30841 On Fri, Oct 5, 2012 at 2:19 PM, vasudevram wrote: > > http://jugad2.blogspot.in/2012/10/fmap-inverse-of-python-map-function.html Your fmap is a special case of reduce. def fmap(functions, argument): return reduce(lambda result, func: func(result), functions, argument)