Path: csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed8.news.xs4all.nl!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 0.056 X-Spam-Evidence: '*H*': 0.89; '*S*': 0.00; 'creighton': 0.09; 'stored': 0.10; 'wed,': 0.15; '11:09': 0.16; 'integers.': 0.16; 'received:adsl-dyn.isp.belgacom.be': 0.16; 'wrote:': 0.16; 'string': 0.17; 'laura': 0.18; 'versions': 0.20; '2015': 0.20; 'am,': 0.23; 'performing': 0.23; 'examples': 0.24; 'header:In- Reply-To:1': 0.24; 'sort': 0.25; "i've": 0.25; 'header:User- Agent:1': 0.26; '+0200,': 0.27; 'format,': 0.27; 'correct': 0.28; 'decimal': 0.29; 'far,': 0.29; 'code': 0.30; 'received:be': 0.30; 'operations': 0.31; 'but': 0.36; 'should': 0.36; 'there': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'stuff': 0.38; 'does': 0.39; 'received:192': 0.39; 'to:addr:python.org': 0.40; 'where': 0.40; 'subject:with': 0.40; 'charset:windows-1252': 0.62; 'card': 0.63; 'information': 0.63; 'account': 0.66; 'biggest': 0.67; 'jul': 0.72; 'maths': 0.84; 'received:195.238': 0.84; 'subject:leading': 0.84 X-Belgacom-Dynamic: yes X-Cloudmark-SP-Filtered: true X-Cloudmark-SP-Result: v=1.1 cv=r3/LV5qEOeRNqOlObU3fPeZ+G8vFrxRTI9UozocECbw= c=1 sm=2 a=2354W9g8axZVFZPWLtcA:9 a=pILNOxqGKmIA:10 a=6-iLkHf-57KAbj3N:21 a=3Mf0xXdaPYHrj52w:21 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2CRAQAYtq9V/zHY9VENTsVvgl4CggYRAQEBAQEBAYUuAQEEMUcRCxgJDAoPCQMCAQIBRRMIAogvtjuEHY4mhGYBAQEHAiCLTIUNCgyEFQEElFeMMpkShCSDOAEBAQ Date: Wed, 22 Jul 2015 17:27:47 +0200 From: Antoon Pardon User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.7.0 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Integers with leading zeroes References: <55ab37fb$0$1661$c3e8da3$5496439d@news.astraweb.com> <55aeea13$0$1669$c3e8da3$5496439d@news.astraweb.com> <55aefc70$0$1656$c3e8da3$5496439d@news.astraweb.com> In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ 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: 23 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1437578956 news.xs4all.nl 2934 [2001:888:2000:d::a6]:59350 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:94374 On 07/22/2015 11:09 AM, alister wrote: > On Wed, 22 Jul 2015 09:12:59 +0200, Laura Creighton wrote: > >> The biggest use I have for decimal numbers that begin with 0 is in >> credit card numbers, account numbers and the like where the first check >> you do is 'does this thing have the correct number of digits'. >> So far, all the examples I've been able to find in my code -- which does >> this sort of stuff a lot -- is looking at string versions of decimal >> numbers, but I suspect there is old code out there in the wild which >> just used integers. >> >> Laura > > This type of information should be stored as a string not any type of > numeric format, if you are not performing maths on it then it is a string > & not a number. Does the same condition hold for strings? If you are not performing string operations on something, it is not a string? -- Antoon Pardon.