Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder1.news.weretis.net!feeder.erje.net!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!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 0.033 X-Spam-Evidence: '*H*': 0.93; '*S*': 0.00; 'subject:while': 0.09; '24,': 0.16; 'assignment.': 0.16; 'expr': 0.16; 'oct': 0.16; 'subject:expression': 0.16; 'true:': 0.16; 'wed,': 0.16; 'wrote:': 0.17; 'duplicate': 0.17; 'variable': 0.20; 'bit': 0.21; 'header :In-Reply-To:1': 0.25; 'message-id:@mail.gmail.com': 0.27; 'run': 0.28; 'dan': 0.29; "i'm": 0.29; 'received:209.85.215.46': 0.30; 'to:addr:python-list': 0.33; 'received:google.com': 0.34; 'pm,': 0.35; 'received:209.85': 0.35; 'received:209': 0.37; 'subject:: ': 0.38; 'sure': 0.38; 'to:addr:python.org': 0.39; 'header:Received:5': 0.40; 'due': 0.66; 'felt': 0.75; 'idiomatic': 0.84; 'to:name:python': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=lPvr2S+oEvEGjWZ4iBrJmxqnhAr57UeBYD1Dm689ob0=; b=F9kOha6J2Clhk4I24kbXqPvcgjZ0jBPhDnnWJ51Jm3F70pDk8b9U24W1XqV2e1BK5s rY1wN1RM08wR5TlFCSqb5jPlzlegP3Y623WdlB+/NGMGJH04yRcLP2/58bFlGEV332Y0 2Da8ohBqH8cDUBv6nUFQgbMtL0sQUB3lxpSTx1d0IM5lZMkL4lBMFBVLNqxHHijhNgRw r8u9LK8glbJdCE6IlLQD3g1TFRnxK04yYeOferTwNJQZqeRIBz2wpQZFhIlpLp+JFB3f yb33b5lXsaQPKwvxPMDg1APq0BopZ0qOzPtz9KSwZiNFrfCZdSYPRkzeCI+5U59dvFEY wBXg== MIME-Version: 1.0 In-Reply-To: References: From: Ian Kelly Date: Wed, 24 Oct 2012 15:34:05 -0600 Subject: Re: while expression feature proposal To: Python Content-Type: text/plain; charset=ISO-8859-1 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: 17 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1351114478 news.xs4all.nl 6877 [2001:888:2000:d::a6]:49865 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:32068 On Wed, Oct 24, 2012 at 2:40 PM, Dan Loewenherz wrote: > So I'm sure a lot of you have run into the following pattern. I use it > all the time and it always has felt a bit awkward due to the duplicate > variable assignment. > > VAR = EXPR > while VAR: > BLOCK > VAR = EXPR The idiomatic way to do this is: while True: VAR = EXPR if not VAR: break BLOCK