Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!selfless.tophat.at!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 0.014 X-Spam-Evidence: '*H*': 0.97; '*S*': 0.00; 'builtins': 0.07; 'derived': 0.09; 'pm,': 0.10; 'examples': 0.12; 'wrote:': 0.14; 'contrived': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'germany,': 0.16; 'obviously,': 0.16; 'subject:behavior': 0.16; 'language': 0.18; 'subject:list': 0.19; '27,': 0.19; 'part,': 0.19; 'header:In-Reply-To:1': 0.21; 'say,': 0.22; 'code.': 0.22; 'english,': 0.23; "list's": 0.23; 'received:209.85.210.174': 0.23; 'received:mail- iy0-f174.google.com': 0.23; 'fri,': 0.23; 'message- id:@mail.gmail.com': 0.28; "python's": 0.29; 'looks': 0.31; 'steven': 0.32; 'word.': 0.32; 'to:addr:python-list': 0.33; 'that,': 0.34; 'breaking': 0.35; "d'aprano": 0.35; 'languages': 0.35; 'quite': 0.36; 'addition,': 0.37; 'agreed': 0.37; 'received:google.com': 0.37; 'useful': 0.37; 'received:209.85': 0.37; 'keywords': 0.37; 'subject:: ': 0.38; 'sometimes': 0.39; 'received:209': 0.39; 'flexibility': 0.39; 'to:addr:python.org': 0.39; '1st': 0.66; 'readers': 0.68; 'strange': 0.68; 'alternative': 0.71; 'offer': 0.71; 'purpose,': 0.84; 'latin': 0.93 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=ibK/cCpT1AlnD6vGMBiFgBojotJp31Yb1KB2WA35KCc=; b=kuP7srxfGJfByrFC7nE8N4+NhJV14M+hYvB8hBsj3nLIN/410CtY9q9oLgK7n4DKdJ MrYIw8vZAW/BRVwWaHNCXrta2MKpzhpPOu+CF/C8a8arLh9RvNZaxWCAzW/4+QdMzOuM NA4ghA5xqG1ARidaRClPD5LRgxLJ9PTmWnbc0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=r3k3lozjlMMEAhQ2+QFS9QG2vKHtWwY0bYqow9JqI9qTb+PaAxjQ/172aWpli2t6iK BnGgXnVUTtsEdPfFmK8LO5b/cFu8nSc9mWuQmjnK2+uLXQTXzT1dicC2Vu2TtpltLzPn WjdCbtYlzd2N6JntXSvu8sVt1yNJkM1L/pDcY= MIME-Version: 1.0 In-Reply-To: <4ddf2003$0$29996$c3e8da3$5496439d@news.astraweb.com> References: <16c21256-48df-416a-971f-de49ca4cc981@x6g2000yqj.googlegroups.com> <829f09b0-8f46-4ef0-9d25-e15a1629e22d@h12g2000pro.googlegroups.com> <4ddf0584$0$29996$c3e8da3$5496439d@news.astraweb.com> <4ddf2003$0$29996$c3e8da3$5496439d@news.astraweb.com> Date: Fri, 27 May 2011 14:10:24 +1000 Subject: Re: Puzzled by list-appending behavior 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: 2.1.12 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: 19 NNTP-Posting-Host: 82.94.164.166 X-Trace: 1306469428 news.xs4all.nl 49174 [::ffff:82.94.164.166]:47567 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:6369 On Fri, May 27, 2011 at 1:52 PM, Steven D'Aprano wrote: > Because "lst" is not a real word. To native readers of languages derived > from Latin or Germany, such as English, it is quite a strange "word" > because it has no vowel. In addition, it looks like 1st (first). Contrived examples are always awkward; in real examples, there's often an alternative based on the list's purpose, which can then be used to offer a name. > Sometimes shadowing is harmless, and sometimes it's useful. Agreed on both those halves; and obviously, the times where it's useful are very much important. I have to say, I do like Python's lack of keywords for these things; the ability to shadow is a flexibility that means that, for the most part, new builtins can be added to the language without breaking existing code. ChrisA