Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!newsreader4.netcologne.de!news.netcologne.de!feeder3.cambriumusenet.nl!feeder1.cambriumusenet.nl!feed.tweaknews.nl!194.109.133.84.MISMATCH!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 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'python,': 0.01; 'attributes': 0.05; 'instance': 0.05; 'suppose': 0.05; 'attribute': 0.07; 'check.': 0.07; 'convention.': 0.07; 'subject:object': 0.07; '__name__': 0.09; 'stored': 0.13; 'class,': 0.15; 'already.': 0.16; 'non-data': 0.16; 'cc:addr :python-list': 0.16; 'wrote:': 0.16; 'cc:no real name:2**0': 0.20; 'trying': 0.21; 'cc:2**0': 0.22; 'header:In-Reply-To:1': 0.22; 'module,': 0.23; 'objects,': 0.23; 'pm,': 0.24; 'aug': 0.24; 'object,': 0.24; 'code': 0.25; 'function': 0.27; 'sat,': 0.28; 'url:mailman': 0.28; 'message-id:@mail.gmail.com': 0.29; 'cc:addr:python.org': 0.30; 'do.': 0.30; 'class': 0.30; 'subject:?': 0.31; 'objects': 0.32; 'url:listinfo': 0.33; 'regardless': 0.34; 'however,': 0.34; 'eric': 0.34; 'idea': 0.34; 'explain': 0.36; 'url:python': 0.36; 'useful': 0.36; 'class.': 0.37; 'steven': 0.38; 'received:google.com': 0.38; 'url:org': 0.38; 'received:209.85': 0.38; 'should': 0.38; 'subject:: ': 0.39; 'why': 0.39; 'choose': 0.61; 'received:209.85.215.174': 0.67; 'received:mail-ey0-f174.google.com': 0.67; 'special': 0.67; 'liked': 0.80; '10:47': 0.84; 'snow': 0.91 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=EoiDOR+/MnERC7xa1zOp6JvWMZKSnO72388+hXjcotI=; b=w6MMHwe8K6RXLNbraynsKigjbiFsJhgc+pha0pf4ZydFg/twLmrI3zCw9MYIIspMbK znNPZHX4AykR8aoqdPrwET1OvkN6y0xSLHaDYGY2VTz6xLnmvpMWicVsQGhhH4d+IHzz W6PWLNfmUWz6O4KlmkBAUlgipwGdVoO/ZatBM= MIME-Version: 1.0 In-Reply-To: <4e3e18ee$0$29985$c3e8da3$5496439d@news.astraweb.com> References: <4e3e18ee$0$29985$c3e8da3$5496439d@news.astraweb.com> Date: Sun, 7 Aug 2011 02:05:46 -0600 Subject: Re: how to dynamically generate __name__ for an object? From: Eric Snow To: "Steven D'Aprano" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: python-list@python.org 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: 34 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1312704349 news.xs4all.nl 23895 [2001:888:2000:d::a6]:34755 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:11002 On Sat, Aug 6, 2011 at 10:47 PM, Steven D'Aprano wrote: > Eric Snow wrote: > >> Thought I knew how to provide a dynamic __name__ on instances of a >> class. =A0My first try was to use a non-data descriptor: > > Perhaps you should explain what you are trying to do. If you want to give > instances their own name, why not just give them an instance > attribute "name"? Double-leading-and-trailing-underscore attributes are > reserved for Python, and have special semantics. Again useful information failed to make it from my head to the keyboard. :) Currently I am looking at objects, regardless of their types, and keying off their name. If it is a module, class, or function object, the name should be stored in __name__ already. If it is an instance of the Base class I demonstrated, I would like to maintain that convention. However, you may have a good point. In other code I can simply check for the name attribute I choose for my objects and also check for __name__. I suppose I just liked the idea of having a single attribute to check. -eric > > > -- > Steven > > -- > http://mail.python.org/mailman/listinfo/python-list >