Path: csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed7.news.xs4all.nl!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <lac@openend.se>
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; 'cc:addr:python-list': 0.09; 'received:openend.se': 0.09; 'received:theraft.openend.se': 0.09; 'cc:addr:lac': 0.16; 'cc:addr:openend.se': 0.16; 'from:addr:lac': 0.16; 'from:addr:openend.se': 0.16; 'from:name:laura creighton': 0.16; 'integers.': 0.16; 'message- id:@fido.openend.se': 0.16; 'received:89.233': 0.16; 'received:89.233.217': 0.16; 'received:89.233.217.133': 0.16; 'received:fido': 0.16; 'received:fido.openend.se': 0.16; 'to:addr:pearwood.info': 0.16; "to:name:steven d'aprano": 0.16; 'string': 0.17; 'laura': 0.18; 'versions': 0.20; 'cc:addr:python.org': 0.20; 'cc:2**1': 0.22; 'examples': 0.24; 'header:In-Reply-To:1': 0.24; 'sort': 0.25; "i've": 0.25; 'correct': 0.28; 'decimal': 0.29; 'far,': 0.29; 'received:se': 0.29; 'cc:no real name:2**1': 0.29; 'code': 0.30; 'but': 0.36; 'there': 0.36; 'subject:: ': 0.37; 'charset:us-ascii': 0.37; 'stuff': 0.38; 'does': 0.39; 'where': 0.40; 'subject:with': 0.40; 'header:Message-Id:1': 0.61; 'card': 0.63; 'account': 0.66; 'biggest': 0.67; 'received:89': 0.80; 'subject:leading': 0.84
To: "Steven D'Aprano" <steve@pearwood.info>
cc: python-list@python.org, lac@openend.se
From: Laura Creighton <lac@openend.se>
Subject: Re: Integers with leading zeroes
In-Reply-To: Message from "Steven D'Aprano" <steve@pearwood.info> of "Wed, 22 Jul 2015 12:14:08 +1000." <55aefc70$0$1656$c3e8da3$5496439d@news.astraweb.com>
References: <55ab37fb$0$1661$c3e8da3$5496439d@news.astraweb.com> <mailman.823.1437499340.3674.python-list@python.org> <55aeea13$0$1669$c3e8da3$5496439d@news.astraweb.com> <mailman.845.1437527447.3674.python-list@python.org><55aefc70$0$1656$c3e8da3$5496439d@news.astraweb.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-ID: <14612.1437549179.1@fido>
Date: Wed, 22 Jul 2015 09:12:59 +0200
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.3.9 (theraft.openend.se [89.233.217.130]); Wed, 22 Jul 2015 09:13:00 +0200 (CEST)
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.20+
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.855.1437549189.3674.python-list@python.org>
Lines: 10
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1437549189 news.xs4all.nl 2914 [2001:888:2000:d::a6]:60115
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:94349

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