Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.mixmin.net!weretis.net!feeder4.news.weretis.net!ecngs!feeder2.ecngs.de!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 0.003 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'output': 0.04; 'keys,': 0.07; 'subject:file': 0.07; 'subject:two': 0.07; 'valueerror:': 0.07; '"w")': 0.09; '22,': 0.09; 'subject:()': 0.09; '(k,': 0.16; 'from:addr:mrabarnett.plus.com': 0.16; 'from:addr:python': 0.16; 'from:name:mrab': 0.16; 'keys:': 0.16; 'length,': 0.16; 'merely': 0.16; 'message-id:@mrabarnett.plus.com': 0.16; 'unpack.': 0.16; 'wrote:': 0.17; 'file.': 0.20; 'do.': 0.21; 'tried': 0.25; 'header :In-Reply-To:1': 0.25; 'header:User-Agent:1': 0.26; 'common': 0.26; 'values': 0.26; 'decide': 0.28; 'received:192.168.1.3': 0.29; 'error': 0.30; 'print': 0.32; '11,': 0.33; 'to:addr:python- list': 0.33; '(c)': 0.33; 'but': 0.36; 'should': 0.36; 'two': 0.37; 'subject:: ': 0.38; 'some': 0.38; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'received:192.168': 0.40; 'first': 0.61; "you'll": 0.62; 'email addr:gmail.com': 0.63; 'more': 0.63; 'header:Reply-To:1': 0.68; 'reply-to:no real name:2**0': 0.72; 'guaranteed': 0.76; 'dict()': 0.84; 'reply-to:addr:python.org': 0.84; 'subject:write': 0.84 X-CM-Score: 0.00 X-CNFS-Analysis: v=2.0 cv=OqzNOlDt c=1 sm=1 a=0nF1XD0wxitMEM03M9B4ZQ==:17 a=AAvI7MrX_rgA:10 a=CkFBS_GKr9wA:10 a=ihvODaAuJD4A:10 a=OUOv7kDek9cA:10 a=8nJEP1OIZ-IA:10 a=EBOSESyhAAAA:8 a=8AHkEIZyAAAA:8 a=kQd9J29I3JcA:10 a=pGLkceISAAAA:8 a=WxtidOC2cNdN1MdoavcA:9 a=wPNLvfGTeEIA:10 a=MSl-tDqOz04A:10 a=yWVNIFRscoVkMfFR:21 a=iNF0Ds23FerLySrm:21 a=0nF1XD0wxitMEM03M9B4ZQ==:117 X-AUTH: mrabarnett:2500 Date: Sun, 23 Sep 2012 19:00:33 +0100 From: MRAB User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:15.0) Gecko/20120907 Thunderbird/15.0.1 MIME-Version: 1.0 To: python-list@python.org Subject: Re: write to a file two dict() References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: python-list@python.org 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: 34 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1348423418 news.xs4all.nl 6982 [2001:888:2000:d::a6]:34269 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:29838 On 2012-09-23 18:44, giuseppe.amatulli@gmail.com wrote: > Hi > Have two dict() of the same length and i want print them to a common file. > > > a={1: 1, 2: 2, 3: 3} > b={1: 11, 2: 22, 3: 33} > > in order to obtain > > 1 1 1 11 > 2 2 2 22 > 3 3 3 33 > > I tried > > output = open(dst_file, "w") > for (a), b , (c) , d in a.items() , b.items() : > output.write("%i %i %i %i\n" % (a,b,c,d)) > output.close() > > but i get the error ValueError: need more than 3 values to unpack. > > do you have some suggestions?. > If they are guaranteed to have the same keys: a = {1: 1, 2: 2, 3: 3} b = {1: 11, 2: 22, 3: 33} for k in a: output.write("%i %i %i %i\n" % (k, a[k], k, b[k])) If they don't have the same keys, but are merely the same length, then you'll first need to decide what it should do.