Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Erik Newsgroups: comp.lang.python Subject: Re: static variables Date: Wed, 2 Dec 2015 01:16:37 +0000 Lines: 18 Message-ID: References: <565cf163$0$1612$c3e8da3$5496439d@news.astraweb.com> <565e4329$0$1612$c3e8da3$5496439d@news.astraweb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Trace: news.uni-berlin.de PwFtvkBuWX+tovOgxJ+b/wyvxV1GtqBAJyexsfQxh5nA== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'static': 0.03; 'caller': 0.07; 'override': 0.07; 'mutable': 0.09; 'storage.': 0.09; 'def': 0.13; '"private"': 0.16; 'from:addr:python': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'thread.': 0.16; 'to:addr:pearwood.info': 0.16; "to:name:steven d'aprano": 0.16; 'wrote:': 0.16; '>>>': 0.20; '2015': 0.20; 'to:2**1': 0.21; 'dec': 0.23; 'header:In-Reply-To:1': 0.24; 'skip:- 40': 0.25; 'header :User-Agent:1': 0.26; 'print': 0.30; "d'aprano": 0.33; 'steven': 0.33; 'tue,': 0.34; 'something': 0.35; 'to:addr:python-list': 0.36; 'pm,': 0.36; 'subject:: ': 0.37; 'received:192': 0.39; 'to:addr:python.org': 0.40; 'default': 0.61; 'charset:windows-1252': 0.62; 'local,': 0.84; 'exposing': 0.91 X-CM-Score: 0.00 X-CNFS-Analysis: v=2.1 cv=bI7rW6KZ c=1 sm=1 tr=0 a=Ypmeq7T0cKALDUsRPCToMg==:117 a=Ypmeq7T0cKALDUsRPCToMg==:17 a=0Bzu9jTXAAAA:8 a=EBOSESyhAAAA:8 a=N659UExz7-8A:10 a=sTL1cM5qazUn-utOV4EA:9 a=pILNOxqGKmIA:10 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 In-Reply-To: <565e4329$0$1612$c3e8da3$5496439d@news.astraweb.com> X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com comp.lang.python:99840 On 02/12/15 01:02, Steven D'Aprano wrote: > On Tue, 1 Dec 2015 08:15 pm, Grobu wrote: >> # ------------------------------------------------- >> >>> def test(arg=[0]): >> ... print arg[0] >> ... arg[0] += 1 > Awesome! Hideous! > using a mutable default as static storage. Exposing something a caller can override as a local, static, supposedly "private" value is IMHO a tad ... ugly? (*) E. (*) No I don't want to resurrect that thread.