Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder1.news.weretis.net!feeder.erje.net!eu.feeder.erje.net!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 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'sane': 0.09; 'def': 0.10; 'subject:python': 0.11; 'steve': 0.13; 'cleaner': 0.16; 'from:addr:cs': 0.16; 'from:addr:zip.com.au': 0.16; 'from:name:cameron simpson': 0.16; 'inaccessible': 0.16; 'keith': 0.16; 'message-id:@cskk.homeip.net': 0.16; 'readable': 0.16; 'received:202.125.174': 0.16; 'received:202.125.174.133': 0.16; 'received:boardofstudies.nsw.edu.au': 0.16; 'received:cskk.homeip.net': 0.16; 'received:edu.au': 0.16; 'received:harvey.boardofstudies.nsw.edu.au': 0.16; 'received:homeip.net': 0.16; 'received:nsw.edu.au': 0.16; 'roy': 0.16; 'simpson': 0.16; 'wrote:': 0.17; 'skip:i 40': 0.17; 'stefan': 0.17; "i'd": 0.22; 'seems': 0.23; 'header:In-Reply- To:1': 0.25; 'header:User-Agent:1': 0.26; 'appear': 0.26; 'this?': 0.28; 'code': 0.31; 'to:addr:python-list': 0.33; 'nov': 0.35; 'pm,': 0.35; 'too.': 0.35; 'there': 0.35; 'but': 0.36; 'received:au': 0.36; 'charset:us-ascii': 0.36; 'subject:: ': 0.38; 'some': 0.38; 'page': 0.38; 'to:addr:python.org': 0.39; 'think': 0.40; 'your': 0.60; 'content-disposition:inline': 0.60; 'times': 0.63; 'smith': 0.71; 'insane': 0.93 Date: Sun, 11 Nov 2012 19:48:36 +1100 From: Cameron Simpson To: python-list@python.org Subject: Re: A gnarly little python loop MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) References: X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 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: 33 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1352623728 news.xs4all.nl 6855 [2001:888:2000:d::a6]:48032 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:33122 On 11Nov2012 08:56, Stefan Behnel wrote: | Steve Howell, 11.11.2012 04:03: | > On Nov 10, 2:58 pm, Roy Smith wrote: | >> page = 1 | >> while 1: | >> r = api.GetSearch(term="foo", page=page) | >> if not r: | >> break | >> for tweet in r: | >> process(tweet) | >> page += 1 | >> | >> It works, but it seems excessively fidgety. Is there some cleaner way | >> to refactor this? | > | > I think your code is perfectly readable and clean, but you can flatten | > it like so: | > | > def get_tweets(term, get_page): | > page_nums = itertools.count(1) | > pages = itertools.imap(api.getSearch, page_nums) | > valid_pages = itertools.takewhile(bool, pages) | > tweets = itertools.chain.from_iterable(valid_pages) | > return tweets | | I'd prefer the original code ten times over this inaccessible beast. Me too. -- Cameron Simpson In an insane society, the sane man must appear insane. - Keith A. Schauer