Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!tudelft.nl!txtfeed1.tudelft.nl!multikabel.net!newsfeed20.multikabel.net!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <rosuav@gmail.com>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.044
X-Spam-Evidence: '*H*': 0.91; '*S*': 0.00; 'am,': 0.12; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'non- python': 0.16; 'pythonic': 0.16; 'x[i]': 0.16; '\xa0print': 0.16; 'wed,': 0.17; 'wrote:': 0.18; 'subject:list': 0.21; 'header:In- Reply-To:1': 0.22; 'feb': 0.22; 'loop,': 0.23; 'received:209.85.213.46': 0.23; 'received:mail- yw0-f46.google.com': 0.23; 'message-id:@mail.gmail.com': 0.29; 'fairly': 0.30; 'habits': 0.30; 'sort': 0.33; 'here,': 0.35; 'to:addr:python-list': 0.35; 'but': 0.37; 'received:google.com': 0.37; 'subject:with': 0.37; 'received:209.85': 0.38; 'think': 0.38; 'received:209': 0.39; 'to:addr:python.org': 0.40; 'more': 0.61; 'aaron': 0.67; 'subject:one': 0.77; 'subject:over': 0.84; 'subject:value': 0.84
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=hQcAV5O/6NL0VqtQrm1AJ3lSfvN3qbQgpZV9nepvSJA=; b=jPExnIq2hpkOELCpcjxy65DlakeLjBg6JY9u8NNOSZ5VlalU8M8IVLJWfkD6B+O22c Wp5uM5OqN+tUetI3EiWX8fYpyHyBJjeqocO5UysWFbkaPCzeHEGmHFtzFE4+PfZLu1Rl 9DsnKjYWo2yKel7V98glVBfsrWPcNb+cMPUS8=
MIME-Version: 1.0
In-Reply-To: <4F3196B9.8080109@gmail.com>
References: <1328646189.84221.YahooMailClassic@web161206.mail.bf1.yahoo.com> <4F319406.8060206@mrabarnett.plus.com> <4F3196B9.8080109@gmail.com>
Date: Wed, 8 Feb 2012 08:37:14 +1100
Subject: Re: iterating over list with one mising value
From: Chris Angelico <rosuav@gmail.com>
To: python-list@python.org
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://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: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.5517.1328650642.27778.python-list@python.org>
Lines: 11
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1328650642 news.xs4all.nl 6865 [2001:888:2000:d::a6]:32828
X-Complaints-To: abuse@xs4all.nl
Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:19986

On Wed, Feb 8, 2012 at 8:25 AM, Aaron France
<a.france.mailinglists@gmail.com> wrote:
> for i in range(0, len(x), 2):
> =A0 =A0print x[i-1], x[i]

I think you want x[i], x[i+1] here, but in any case, this is a fairly
standard non-Python way to do this sort of thing. There's a variety of
more Pythonic ways to loop, but every now and then, the old C habits
still come in handy!

ChrisA