Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!news-transit.tcx.org.uk!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!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 0.015 X-Spam-Evidence: '*H*': 0.97; '*S*': 0.00; 'skip': 0.04; 'python:': 0.05; 'message-id:@web.de': 0.09; 'subject:Processing': 0.09; 'python?': 0.15; 'awk': 0.16; 'nick': 0.16; 'wrote:': 0.18; '>>>': 0.18; 'header:In-Reply-To:1': 0.22; 'from:addr:web.de': 0.23; "skip:' 10": 0.29; 'print': 0.29; 'does': 0.32; 'header:User- Agent:1': 0.33; 'to:addr:python-list': 0.34; 'something': 0.35; 'file': 0.36; 'similar': 0.36; 'but': 0.37; 'not,': 0.37; "i'd": 0.39; 'received:de': 0.39; 'header': 0.39; 'skip:- 50': 0.39; 'why': 0.39; 'to:addr:python.org': 0.40; 'subject:Text': 0.73; '0.00': 0.91 Date: Wed, 21 Dec 2011 01:01:41 +0100 From: Alexander Kapps User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de-DE; rv:1.9.1.16) Gecko/20101125 Thunderbird/3.0.11 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Text Processing References: <209c2abf-dd56-4a7f-839b-fad92920d457@m7g2000vbc.googlegroups.com> <20111220210321.77451e19@bouzin.lan> <7895.1324415085@alphaville.americas.hpqcorp.net> In-Reply-To: <7895.1324415085@alphaville.americas.hpqcorp.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Provags-ID: V02:K0:3RjBJp3ZTWEmD2gYvjxoNjIrIWeCpUM2KCxMDBq6Wbj ftp2QNoR+hJyv8ppZ4FbN+wtznnp7Ax4m9ypEMSHTx8sIf0+te /zH/62fI3kMbgx1RBo00pD7y7w37WClxCfdCw/JSKIWpV4ESl+ QqcF+QTpQyNZl1rNUkqaLOHhwsN8gPDkIfbW48naqDStjx5h0i zCKCmxn3oDSHGR/nZVa5w== X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 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: 32 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1324425704 news.xs4all.nl 6939 [2001:888:2000:d::a6]:55905 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:17626 On 20.12.2011 22:04, Nick Dokos wrote: >>> I have a text file containing such data ; >>> >>> A B C >>> ------------------------------------------------------- >>> -2.0100e-01 8.000e-02 8.000e-05 >>> -2.0000e-01 0.000e+00 4.800e-04 >>> -1.9900e-01 4.000e-02 1.600e-04 >>> >>> But I only need Section B, and I need to change the notation to ; >>> >>> 8.000e-02 = 0.08 >>> 0.000e+00 = 0.00 >>> 4.000e-02 = 0.04 > Does it have to be python? If not, I'd go with something similar to > > sed 1,2d foo.data | awk '{printf("%.2f\n", $2);}' > Why sed and awk: awk 'NR>2 {printf("%.2f\n", $2);}' data.txt And in Python: f = open("data.txt") f.readline() # skip header f.readline() # skip header for line in f: print "%02s" % float(line.split()[1])