Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!news.mixmin.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed3a.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 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'from:addr:yahoo.co.uk': 0.04; 'cpython': 0.05; 'interpreter': 0.05; 'subject:Python': 0.06; "ain't": 0.09; 'lawrence': 0.09; 'oh,': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:language': 0.09; 'will,': 0.09; 'language.': 0.14; 'ironpython': 0.16; 'language?': 0.16; 'mark,': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'subject: \n ': 0.16; 'suppport': 0.16; 'user-base': 0.16; 'language': 0.16; 'fix': 0.17; 'wrote:': 0.18; 'not,': 0.20; '>>>': 0.22; 'appears': 0.22; 'header:User-Agent:1': 0.23; 'people,': 0.24; 'versions': 0.24; '---': 0.24; 'question': 0.24; 'communities': 0.26; 'asking': 0.27; 'header:X-Complaints-To:1': 0.27; 'header:In-Reply-To:1': 0.27; 'point': 0.28; 'am,': 0.29; 'subject:list': 0.30; "i'm": 0.30; 'probably': 0.32; 'another': 0.32; 'community': 0.33; 'could': 0.34; 'point.': 0.35; 'but': 0.35; 'there': 0.35; 'two': 0.37; 'question,': 0.38; 'to:addr :python-list': 0.38; 'rather': 0.38; 'expect': 0.39; 'does': 0.39; 'heard': 0.39; 'supporting': 0.39; 'sure': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'free': 0.61; 'viruses': 0.61; 'protection': 0.63; 'our': 0.64; 'yes': 0.68; 'antivirus': 0.68; 'yourself': 0.78; 'subject:this': 0.83; 'received:2': 0.84; 'serious': 0.97 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Mark Lawrence Subject: Re: Explanation of this Python language feature? [x for x in x for x in x] (to flatten a nested list) Date: Fri, 04 Apr 2014 22:50:34 +0100 References: <9daf0806-02de-4447-964c-c8f8953c23e5@googlegroups.com> <5334c38e$0$29994$c3e8da3$5496439d@news.astraweb.com> <53364327$0$29994$c3e8da3$5496439d@news.astraweb.com> <53365F55.2040302@gmail.com> <533836c4$0$29994$c3e8da3$5496439d@news.astraweb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: host-2-98-192-106.as13285.net User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 In-Reply-To: X-Antivirus: avast! (VPS 140404-0, 04/04/2014), Outbound message X-Antivirus-Status: Clean 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: 40 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1396648253 news.xs4all.nl 2830 [2001:888:2000:d::a6]:38717 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:69681 On 04/04/2014 21:58, Mark H Harris wrote: > On 4/4/14 3:20 AM, Mark Lawrence wrote: >> On 04/04/2014 03:29, Mark H Harris wrote: >>> >>> Now, about Python2. It has not died. It appears to be 'useful'. >>> {snip} >>> >> >> For a lot of people, if it ain't broke, don't fix it. >> > > hi Mark, yes that's my point. I have heard rumors of python2.8? At some > point I would expect that the Cpython interpreter would 'freeze' and no > one would fix it any longer. I have a serious question, namely, why does > the Cpython community continue to suppport two interpreters rather than > asking the Cpython user-base to migrate to Cpython3? > > Oh, I have another serious question about implementations. I'm not sure > about (50) implementations, but I know that Jython and IronPython are > serious contenders (although, I have not, nor probably will, use them). > > Are the other implementation communities *also* supporting two versions > of the language? Is there a Jython2 &also a Jython3 ? > > marcus You could answer all of the above for yourself if you were to use your favourite search engine. -- My fellow Pythonistas, ask not what our language can do for you, ask what you can do for our language. Mark Lawrence --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com