Path: csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!newsreader4.netcologne.de!news.netcologne.de!xlned.com!feeder7.xlned.com!news2.euro.net!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 0.012 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'subject:Python': 0.06; 'variables': 0.07; 'attributes': 0.09; 'global,': 0.09; 'subject:question': 0.10; 'python': 0.11; 'def': 0.12; 'attribute.': 0.16; 'attributes.': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'in...': 0.16; 'subject:class': 0.16; 'subject:issue': 0.16; 'subject:variable': 0.16; 'variable.': 0.16; 'sat,': 0.16; 'language': 0.16; 'wrote:': 0.18; '>>>': 0.22; '(in': 0.22; 'rules': 0.22; 'java': 0.24; 'header:In- Reply-To:1': 0.27; 'chris': 0.29; 'am,': 0.29; 'message- id:@mail.gmail.com': 0.30; 'agreed.': 0.31; 'bad.': 0.31; "d'aprano": 0.31; 'steven': 0.31; 'class': 0.32; 'actively': 0.33; 'received:209.85': 0.35; 'received:209.85.220': 0.35; 'but': 0.35; 'received:google.com': 0.35; 'should': 0.36; 'received:209': 0.37; 'mine': 0.38; 'to:addr:python-list': 0.38; 'bad': 0.39; 'to:addr:python.org': 0.39; 'skip:u 10': 0.60; 'first': 0.61; 'decided': 0.64; 'different': 0.65; '30,': 0.65; 'mar': 0.68; 'sam': 0.68; 'all!': 0.84; 'berry': 0.84; 'harmful': 0.84; 'subject:!)': 0.84; '2013': 0.98 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:date:message-id :subject:from:to:content-type; bh=uaSMtFC6QRTpUzIDktFiiwXPpm7zL0sdin0DSf2QF5E=; b=lHmhur/HgEo2EtLIixKSkmenPRfH1ioLj6xwNpT77bWlt7sR9VOsEpO/K0k3EvZIpN gwZhkteFir/tVOdaHNihdTrnrn5i9OP/9FlB4sp2yvA9kc4dBFpK2XpuSp430u32Sb/J nwWWmrXiCeOhYthR4FoVgwfBAb5+VsDP8bkbiGdd/nwdnkTW5wvnttoo71r7tcly7InR FbPp16AzKM6Cqwkmdu4Li0GJTIW3nIrWu/V8ZDbKSVRftBxbXUIaT+U7QVCMWaCqgUOf Nsi578r9feDgYOOoJFj9FK5sCdw6ZagYFXLSLbScHVrmUni6q27q2+kn29F2EYLbQDhF mtEQ== MIME-Version: 1.0 X-Received: by 10.220.231.199 with SMTP id jr7mr3003849vcb.70.1364597962724; Fri, 29 Mar 2013 15:59:22 -0700 (PDT) In-Reply-To: <51561ae3$0$29974$c3e8da3$5496439d@news.astraweb.com> References: <78680654-5cf5-435c-9fce-19d6f5c23360@googlegroups.com> <51561ae3$0$29974$c3e8da3$5496439d@news.astraweb.com> Date: Sat, 30 Mar 2013 09:59:22 +1100 Subject: Re: Python class and variable issue(newby question!) From: Chris Angelico To: python-list@python.org 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: 35 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1364597970 news.xs4all.nl 6938 [2001:888:2000:d::a6]:49704 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:42293 On Sat, Mar 30, 2013 at 9:51 AM, Steven D'Aprano wrote: > On Sat, 30 Mar 2013 08:24:00 +1100, Chris Angelico wrote: > >> On Sat, Mar 30, 2013 at 8:12 AM, Sam Berry >> wrote: >>> class test() >>> s = 1 >>> >>> def test1() >>> global s >>> s = 2 > >> That's not a global, that's a class variable. > > > /me thwacks Chris with a halibut. Ow ow ow, I give in... I am suitably and appropriately thwacked. > Not only is "class variable" ambiguous, but Python uses different scoping > rules for "variables" (name bindings) and attributes. Yes, I should have said class ATTRIBUTE. Sorry all! (Can I blame the whole 8AM and still up thing? No? Mea culpa, anyhow.) > I don't know what language first decided to conflate object attributes > and variables -- I suspect Java -- but it is actively harmful terminology > (in Python at least, if not in general) and whoever invented it is bad > and should feel bad. Agreed. Unfortunately it permeates a lot of programmer's vocabularies, mine included. ChrisA