Re: how to iterate all sub-element in a list

Path	csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed4a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path	<skip.montanaro@gmail.com>
X-Original-To	python-list@python.org
Delivered-To	python-list@mail.python.org
X-Spam-Status	OK 0.037
X-Spam-Evidence	'H': 0.93; 'S': 0.00; 'operator': 0.03; 'cc:addr :python-list': 0.11; '"python': 0.16; 'from:addr:pobox.com': 0.16; 'from:addr:skip': 0.16; 'subject:sub': 0.16; 'sender:addr:gmail.com': 0.17; 'cc:addr:python.org': 0.22; 'skip': 0.24; '(or': 0.24; 'question': 0.24; 'cc:2**0': 0.24; 'header:In- Reply-To:1': 0.27; 'subject:list': 0.30; 'message- id:@mail.gmail.com': 0.30; "i'm": 0.30; 'extend': 0.32; 'subject:all': 0.32; 'could': 0.34; 'problem': 0.35; 'common': 0.35; 'received:google.com': 0.35; 'google': 0.35; 'sure': 0.39; 'flat': 0.60; 'first': 0.61; 'to:addr:gmail.com': 0.65; 'homework': 0.84; 'unaware': 0.84
DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=crRCIrqmGEdbmn+372Z5WjawR+lDiBws6g61LJSAd7w=; b=Y0EbD0Yxho/3IddbJfiJNRS2QMmPpg77cdeh/dfsfd/BuJ8SBTKah2o8wbhBzhCWQn nBHIP4ObqTntMmeNtXS1Noh2/DoPAfdTwPmaoFN8i6YcLqWTir1xI7hIPhnbtTYeOf/O mlaSo4DCowPQpNdxVnbBFnq28Umo4g7vOEBd0nS6EY6khhZN77tfEVxypLRqH49PUWMT gKSYdZZDjeP8K2sX63LW6vAP1J5FBRZu7VC9mJvLYml7Esuq7U7yzHbJr0Qzj53wyiYh KQ3sOZ8AygR1gmFjqMw7BK8mzLN+W0/qu/1VmdP99mH5va/kOv3Snc24jsGy+P2kwbXg OH9Q==
MIME-Version	1.0
X-Received	by 10.220.11.141 with SMTP id t13mr103165vct.30.1391164167275; Fri, 31 Jan 2014 02:29:27 -0800 (PST)
Sender	skip.montanaro@gmail.com
In-Reply-To	<412b4d42-acba-4609-bd6d-e4d5c32db035@googlegroups.com>
References	<412b4d42-acba-4609-bd6d-e4d5c32db035@googlegroups.com>
Date	Fri, 31 Jan 2014 04:29:27 -0600
X-Google-Sender-Auth	Z0ppFUABusyDCZtK8H9P07NxdaQ
Subject	Re: how to iterate all sub-element in a list
From	Skip Montanaro <skip@pobox.com>
To	seaspeak@gmail.com
Content-Type	text/plain; charset=UTF-8
Cc	Python <python-list@python.org>
X-BeenThere	python-list@python.org
X-Mailman-Version	2.1.15
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.6201.1391164607.18130.python-list@python.org> (permalink)
Lines	9
NNTP-Posting-Host	2001:888:2000:d::a6
X-Trace	1391164607 news.xs4all.nl 2832 [2001:888:2000:d::a6]:38653
X-Complaints-To	abuse@xs4all.nl
Xref	csiph.com comp.lang.python:65110

Show key headers only | View raw

Google for "python flatten list."

This question comes up frequently, though I'm not sure if that's
because it's a common homework problem or because people are unaware
of the += operator (or extend method) for lists, and so build
lists-of-lists when they could just build them flat in the first
place.

Skip

Thread

how to iterate all sub-element in a list seaspeak@gmail.com - 2014-01-31 02:16 -0800
  Re: how to iterate all sub-element in a list Skip Montanaro <skip@pobox.com> - 2014-01-31 04:29 -0600
    Re: how to iterate all sub-element in a list seaspeak@gmail.com - 2014-01-31 02:42 -0800
      Re: how to iterate all sub-element in a list Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-01-31 14:48 +0000
        Re: how to iterate all sub-element in a list seaspeak@gmail.com - 2014-01-31 08:23 -0800
  Re: how to iterate all sub-element in a list Peter Otten <__peter__@web.de> - 2014-01-31 11:48 +0100
    Re: how to iterate all sub-element in a list Rustom Mody <rustompmody@gmail.com> - 2014-01-31 04:12 -0800

csiph-web