Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!tudelft.nl!txtfeed1.tudelft.nl!multikabel.net!newsfeed20.multikabel.net!amsnews11.chello.com!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 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'python,': 0.01; 'subject:bug': 0.04; 'unexpected': 0.07; 'python': 0.08; 'behavior:': 0.09; 'cc:addr:python-list': 0.15; 'examples': 0.15; '"copyright",': 0.16; '"credits"': 0.16; '"license"': 0.16; '-tkc': 0.16; '[gcc': 0.16; 'from:addr:python.list': 0.16; 'from:addr:tim.thechases.com': 0.16; 'from:name:tim chase': 0.16; 'linux2': 0.16; 'message-id:@tim.thechases.com': 0.16; 'received:70.251': 0.16; 'received:dsl.rcsntx.swbell.net': 0.16; 'received:rcsntx.swbell.net': 0.16; 'received:swbell.net': 0.16; 'subject:result': 0.16; 'xrange': 0.16; 'wrote:': 0.16; '>>>': 0.18; 'cc:no real name:2**0': 0.21; "aren't": 0.21; 'dec': 0.22; 'header:In-Reply-To:1': 0.22; 'suspect': 0.24; 'cc:2**0': 0.25; 'cc:addr:python.org': 0.29; 'version': 0.31; 'header:User- Agent:1': 0.33; 'something': 0.35; 'unless': 0.37; 'subject: (': 0.39; 'subject:: ': 0.39; 'type': 0.60; 'more': 0.61; 'your': 0.61; 'bitten': 0.84; 'correctly?': 0.84 Date: Tue, 31 Jan 2012 06:49:26 -0600 From: Tim Chase User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111120 Icedove/3.1.16 MIME-Version: 1.0 To: Neal Becker Subject: Re: surprising result all (generator) (bug??) References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - boston.accountservergroup.com X-AntiAbuse: Original Domain - python.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tim.thechases.com Cc: python-list@python.org X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 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: 29 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1328018664 news.xs4all.nl 6965 [2001:888:2000:d::a6]:60433 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:19638 On 01/31/12 06:40, Neal Becker wrote: > I was just bitten by this unexpected behavior: > > In [24]: all ([i> 0 for i in xrange (10)]) > Out[24]: False > > In [25]: all (i> 0 for i in xrange (10)) > Out[25]: True You sure you transcribed that correctly? Python 2.6.6 (r266:84292, Dec 26 2010, 22:31:48) [GCC 4.4.5] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> all([i>0 for i in xrange(10)]) False >>> all(iter([i>0 for i in xrange(10)])) False >>> all(i>0 for i in xrange(10)) False So unless it's something in a newer version of Python, I suspect your examples aren't what you typed. -tkc