Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!feeds.phibee-telecom.net!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 0.010 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'explicitly': 0.04; 'assign': 0.07; 'indexing': 0.07; 'tkinter': 0.07; 'x-mailer:evolution 2.28.3': 0.07; 'effect.': 0.09; 'indexes': 0.09; 'itself.': 0.11; 'passing': 0.15; '*always*': 0.16; 'above)': 0.16; 'also:': 0.16; 'assigns': 0.16; 'is;': 0.16; 'iterables': 0.16; 'received:195.186': 0.16; 'received:bluewin.ch': 0.16; 'wrote:': 0.17; 'skip:" 40': 0.20; 'names.': 0.22; 'header:In-Reply-To:1': 0.25; 'setting': 0.26; '[1]': 0.27; '[2]': 0.27; 'label': 0.27; '-0700,': 0.29; 'obj': 0.29; 'yes.': 0.29; 'function': 0.30; '(and': 0.32; 'url:python': 0.32; 'johnson': 0.32; 'says': 0.33; 'to:addr:python-list': 0.33; 'changed': 0.34; 'thanks': 0.34; 'list': 0.35; 'built-in': 0.35; 'something': 0.35; 'there': 0.35; 'url:org': 0.36; 'development.': 0.36; 'url:library': 0.36; "didn't": 0.36; 'why': 0.37; 'drop': 0.37; 'subject:: ': 0.38; 'skip:( 30': 0.38; 'easier': 0.38; 'url:docs': 0.38; 'instead': 0.39; 'performance': 0.39; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'skip:" 10': 0.40; 'received:192.168': 0.40; 'your': 0.60; 'needing': 0.62; 'url:0': 0.67; 'received:ch': 0.69; 'url:htm': 0.71; 'blow': 0.84; 'is)': 0.84; 'subject:gets': 0.84; 'url:functions': 0.84; 'habit': 0.91; 'rick': 0.91 Subject: Re: Tkinter.event.widget: handler gets name instead of widget. From: Frederic Rentsch To: python-list@python.org In-Reply-To: <25935b3c-b37d-465f-9855-7ecf2c3bdf4e@h10g2000yqn.googlegroups.com> References: <1341782353.2041.136.camel@hatchbox-one> <89816e26-fc20-4cdc-ba6c-f252231d43ba@f16g2000yqg.googlegroups.com> <25935b3c-b37d-465f-9855-7ecf2c3bdf4e@h10g2000yqn.googlegroups.com> Content-Type: text/plain; charset="UTF-8" Date: Wed, 11 Jul 2012 09:59:27 +0200 Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit 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: 32 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1341993644 news.xs4all.nl 6896 [2001:888:2000:d::a6]:49411 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:25170 On Tue, 2012-07-10 at 18:06 -0700, Rick Johnson wrote: > Also: > > Q3: Why are you explicitly setting the name of your "subFrame" widgets > instead of allowing Tkinter to assign a unique name?...AND are you > aware of the conflicts that can arise from such changes[1]? > I find custom-named widgets easier to work with during development. I can tell what this is; ".main-frame.data-frame.title-hit-list.-10-". If I didn't assign names it would look something line this:".2837029.283725.283762.2848308". Once my program works I can drop custom-naming. I understand that conflicts may arise if one assigns numeric names. To find out whether the digits in the label names ('-10-' above) might be implicated, I changed to spelled-out names ('ten'). The change had no effect. The reference you list blow (x147-more-on-widget-names.htm) indeed says "don't use names which only contain digits". > Q4: Are you aware of the built-in function "enumerate"[2]? I see you > are passing around indexes to iterables AND simultaneously needing the > obj reference itself. I prefer to keep indexing to a minimum. If > there is no bleeding edge performance issue to worry about (and there > almost *always* never is) why not use enumerate? > Aware, yes. In the habit of, no. Thanks for the reminder. > [1] http://www.pythonware.com/library/tkinter/introduction/x147-more-on-widget-names.htm > [2] http://docs.python.org/release/3.0.1/library/functions.html#enumerate Frederic