Path: csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!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 0.011 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'mrab': 0.05; 'chunk': 0.07; 'subject:help': 0.07; '22,': 0.09; 'fetch': 0.09; 'slightly': 0.15; '9:13': 0.16; 'chunk)': 0.16; 'chunk:': 0.16; 'oct': 0.16; 'read:': 0.16; 'travis': 0.16; 'true:': 0.16; 'wrote:': 0.17; 'thanks,': 0.18; 'least': 0.25; 'header:In-Reply- To:1': 0.25; 'appreciated.': 0.26; 'am,': 0.27; 'message- id:@mail.gmail.com': 0.27; 'signatures': 0.29; 'received:209.85.215.46': 0.30; 'could': 0.32; 'skip:l 40': 0.33; 'to:addr:python-list': 0.33; 'another': 0.33; 'received:google.com': 0.34; 'pm,': 0.35; 'received:209.85': 0.35; 'but': 0.36; 'optimization': 0.37; 'does': 0.37; 'received:209': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'subject:-': 0.40; 'header:Received:5': 0.40; 'between': 0.63; 'different': 0.63; 'great': 0.64; 'gap': 0.84; 'localized': 0.84; 'to:name:python': 0.84; 'ideas.': 0.91 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=wvlz4mHbyIdFZldlA5Rxnhfq3WSFa6P8Eq0xcDPpBHM=; b=sLV+4he3m/mFFa7Y3oJmFFhNyy4g8ULlSrGtmt8RV6TA6jOtbmL7xhdIj+Qi7vNmPu tuWsBjPDjJ2ewIPNiBAliz/7FkNwG2Xx4loA6OZgaRGXo05SJjA1rXEJS+nutkjemfM1 EBiUT40c2/9rDgqgRjbDFa7Nsh/ZeXRJbkWBg+mlxaxniJvNtSNonWLqdBy7hLIP7OZE XtG93KsrsqCg3I4mjvgArBX9kCwtOx/aOOtSmiU7aHCqx2lYYPsy+50zIS75reWqEmkc o0POeBhR0dfX+RahKp8+V1e4igpxVfDEpyumwVnXVx2uduU5PQW8ReotrbrV3a3i53DI W8KA== MIME-Version: 1.0 In-Reply-To: <409B8DCE-2A8A-4B3D-B760-016A0EAB1FC3@gmail.com> References: <168DF25C-0C43-45F2-BEDC-17AC4210F207@gmail.com> <5085F3DA.1010809@mrabarnett.plus.com> <409B8DCE-2A8A-4B3D-B760-016A0EAB1FC3@gmail.com> From: Ian Kelly Date: Tue, 23 Oct 2012 11:46:37 -0600 Subject: Re: Style help for a Smalltalk-hack 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: 23 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1351014449 news.xs4all.nl 6938 [2001:888:2000:d::a6]:44015 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:31948 On Tue, Oct 23, 2012 at 9:13 AM, Travis Griggs wrote: > > On Oct 22, 2012, at 6:33 PM, MRAB wrote: > >> Another way you could do it is: >> >> while True: >> chunk = byteStream.read(4) >> if not chunk: >> break >> ... >> >> And you could fetch multiple signatures in one read: >> >> signatures = list(struct.unpack('>{}I'.format(valveCount), byteStream.read(4 * valueCount))) > > Thanks, both great ideas. Still does the read/decode slightly different between the different sites, but at least it's localized better. Much appreciated. Another small optimization would be to read the gap and the valveCount together: chunk = byteStream.read(8) ... gap, valveCount = struct.unpack('>2l', chunk)