Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!xlned.com!feeder3.xlned.com!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!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 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'python.': 0.02; 'from:addr:yahoo.co.uk': 0.04; 'output': 0.05; 'subject:form': 0.07; 'string': 0.09; 'lawrence': 0.09; 'logic': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'strings.': 0.09; 'subject:number': 0.09; 'subject:string': 0.09; 'works.': 0.09; 'language.': 0.14; 'concatenated': 0.16; 'loops': 0.16; 'ravi': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'subject: \n ': 0.16; 'language': 0.16; 'wrote:': 0.18; 'header:User-Agent:1': 0.23; "i've": 0.25; 'values': 0.27; 'header:X-Complaints-To:1': 0.27; 'header:In-Reply-To:1': 0.27; 'idea': 0.28; 'ignored.': 0.30; 'subject:list': 0.30; "i'm": 0.30; 'anyone': 0.31; 'third': 0.33; 'could': 0.34; 'definition': 0.35; 'but': 0.35; 'thanks': 0.36; 'hi,': 0.36; 'should': 0.36; 'list': 0.37; 'expected': 0.38; 'skip:[ 10': 0.38; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'new': 0.61; 'simple': 0.61; 'first': 0.61; 'our': 0.64; 'fourth': 0.84; 'subject:needed.': 0.91 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Mark Lawrence Subject: Re: Concatenate string list to number list to form title - Logic needed. Date: Mon, 16 Dec 2013 17:43:04 +0000 References: <2333bfb4-cd72-4ed0-9b28-d8dbe26b5be2@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: host-78-147-16-207.as13285.net User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 In-Reply-To: <2333bfb4-cd72-4ed0-9b28-d8dbe26b5be2@googlegroups.com> 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: 33 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1387215798 news.xs4all.nl 2851 [2001:888:2000:d::a6]:51546 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:62083 On 16/12/2013 17:16, Ravi Prabakaran wrote: > Hi, > I'm completely new to python. I just need simple logic to get output without any loops. > I have list of string and list of list of numbers. > Each string should be concatenated with every third and fourth values to generate proper titles in list of strings. > > t = ['Start','End'] > a = [[1,2,3,4], > [5,6,7,8]] > > Expected Result : ( list of strings ) > > ['Start - 3 , End - 4', > 'Start - 7 , End - 8'] > > Note : First 2 values from each list should be ignored. > > Could anyone please guide me with best solution without loops ? > > Thanks > Ravi > I've no idea what your definition of "best" is but this works. strings = ['{} - {} , {} - {}'.format(t[0], b[-2], t[1], b[-1]) for b in a] -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence