Path: csiph.com!x330-a1.tempe.blueboxinc.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!feeder.news-service.com!xlned.com!feeder5.xlned.com!newsfeed.xs4all.nl!newsfeed5.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 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'subject:two': 0.07; 'python': 0.08; 'globals': 0.09; 'imo.': 0.09; 'kinda': 0.09; 'received:209.85.160.174': 0.09; 'received:mail- gy0-f174.google.com': 0.09; 'subject:parameters': 0.09; 'pm,': 0.10; 'wrote:': 0.14; '1:13': 0.16; 'odd,': 0.16; 'rohdewald': 0.16; 'subject:function': 0.16; 'wolfgang': 0.16; 'cc:addr:python- list': 0.17; 'mon,': 0.17; 'language': 0.18; 'call.': 0.19; 'cheers,': 0.19; 'header:In-Reply-To:1': 0.21; 'cc:2**0': 0.22; 'fine': 0.22; 'function': 0.25; 'parameters': 0.26; 'message- id:@mail.gmail.com': 0.28; 'problem': 0.28; '(you': 0.29; 'effect': 0.29; 'received:209.85.160': 0.29; 'cc:addr:python.org': 0.30; 'changes': 0.30; 'print': 0.31; 'seem': 0.32; 'things': 0.33; 'chris': 0.34; 'received:google.com': 0.37; 'received:209.85': 0.37; 'bother': 0.37; 'but': 0.38; 'subject:: ': 0.38; 'subject: (': 0.39; 'received:209': 0.39; 'really': 0.40; 'back': 0.63; 'free': 0.63; '30,': 0.84; '11:37': 0.84; 'partially': 0.84; 'sender:addr:chris': 0.84; 'to:none': 0.93 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rebertia.com; s=google; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:cc:content-type; bh=2iCUvquoS7WmtZ/74pETIU6YnKwBRdpAuYDjkneUnRY=; b=ZFA9LRHMHhLh166gAs7lupRccYQtmjBxd3c7geGLwoGDzlwz6P1tYtLt6tOtS21MEc of+HgpQ8PO348ZZ45lFivI7GwZveSZNvCatCq5QL9QgSoCrUnB68v6ve8S/j0WcuuVbf a6txxiXcrSIBuLGz22FnDvZzy5DXt8djORP9s= DomainKey-Signature: a=rsa-sha1; c=nofws; d=rebertia.com; s=google; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:cc:content-type; b=HZD6LqZMFuVmuiwrTEL2vwUrlCTeGixWpwm4MvhbHPCRLU2V4NZTYXswvFLxuoTy5Z a+jZh2z94K1dn2uSYwxcQSGEFlilfL01S1Am/BQPA2EFrMH1vuMR+unFBM9ta8v/joFw +nqiDz4VJ8KH5TQUTo88iECNC5oZqDENXMKco= MIME-Version: 1.0 Sender: chris@rebertia.com In-Reply-To: References: <201105310713.24842.wolfgang@rohdewald.de> Date: Mon, 30 May 2011 23:54:09 -0700 X-Google-Sender-Auth: HSRrV_S3ubxFdn2TiAmIgrKj_-c Subject: Re: scope of function parameters (take two) From: Chris Rebert Cc: "python-list@python.org" Content-Type: text/plain; charset=UTF-8 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: 16 NNTP-Posting-Host: 82.94.164.166 X-Trace: 1306824853 news.xs4all.nl 49181 [::ffff:82.94.164.166]:41983 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:6712 On Mon, May 30, 2011 at 11:37 PM, Henry Olders wrote: > On 2011-05-31, at 1:13 , Wolfgang Rohdewald wrote: >> >> what you really seem to want is that a function by default >> cannot have any side effects (you have a side effect if a >> function changes things outside of its local scope). But >> that would be a very different language than python > > You're partially right - what I want is a function that is free of side effects back through the parameters passed in the function call. Side effects via globals or print statements is fine by me. So, you have no problem with *global* side effects, but side effects with a /more constrained/ scope bother you? That's kinda odd, IMO. Cheers, Chris