Path: csiph.com!usenet.pasdenom.info!news.albasani.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!news.tele.dk!news.tele.dk!small.news.tele.dk!newsgate.cistron.nl!newsgate.news.xs4all.nl!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 0.005 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'subject:not': 0.03; 'syntax': 0.04; 'attribute': 0.07; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'subject:Why': 0.09; '~ethan~': 0.09; 'python': 0.11; 'ought': 0.16; 'piotr': 0.16; 'subject: \n ': 0.16; 'subject:accessing': 0.16; 'wrote:': 0.18; 'slightly': 0.19; 'preferred': 0.22; 'header:User-Agent:1': 0.23; 'header:In- Reply-To:1': 0.27; 'tim': 0.29; 'concise': 0.31; 'subject:with': 0.35; 'there': 0.35; 'charset:us-ascii': 0.36; 'subject:?': 0.36; 'should': 0.36; 'being': 0.38; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'to:addr:python.org': 0.39; 'enough': 0.39; 'new': 0.61; 'received:173': 0.61; 'more': 0.64; 'received:69.56': 0.68; 'subject:there': 0.68; 'obvious': 0.74; 'savings': 0.81; '"one': 0.84; 'subject:being': 0.84 Date: Wed, 04 Dec 2013 01:12:52 -0800 From: Ethan Furman User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121010 Thunderbird/16.0.1 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Why is there no natural syntax for accessing attributes with names not being valid identifiers? References: <15912943-29a1-4365-b027-7bb8cec447f8@googlegroups.com> <17gt99hg615jfm7bdid26185884d2pfdkf@4ax.com> In-Reply-To: <17gt99hg615jfm7bdid26185884d2pfdkf@4ax.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator3304.hostgator.com X-AntiAbuse: Original Domain - python.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - stoneleaf.us X-BWhitelist: no X-Source-IP: 173.12.184.233 X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([173.12.184.233]) [173.12.184.233]:40126 X-Source-Auth: ethan+stoneleaf.us X-Email-Count: 1 X-Source-Cap: dG9idWs7dG9idWs7Z2F0b3IzMzA0Lmhvc3RnYXRvci5jb20= X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 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: 27 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1386148372 news.xs4all.nl 2836 [2001:888:2000:d::a6]:44073 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:60994 On 12/03/2013 09:45 PM, Tim Roberts wrote: > Piotr Dobrogost wrote: >> >> Attribute access syntax being very concise is very often preferred >> to dict's interface. > > It is not "very concise". It is slightly more concise. > > x = obj.value1 > x = dct['value1'] > > You have saved 3 keystrokes. That is not a significant enough savings to > create new syntax. Remember the Python philosophy that there ought to be > one way to do it. That should be "one obvious way". On my keyboard, at least, those are an important three keystrokes! ;) To be clear, I am -1 on the new syntax. -- ~Ethan~