Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed1.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 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'that?': 0.05; 'mixed': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'python': 0.11; '2.7': 0.14; 'isnt': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'prevent': 0.16; 'wrote:': 0.18; 'module': 0.19; 'mechanism': 0.19; 'normally': 0.19; 'properly': 0.19; 'seems': 0.21; 'header:User-Agent:1': 0.23; 'package.': 0.24; 'received:comcast.net': 0.24; 'subject:problem': 0.24; 'header:X-Complaints-To:1': 0.27; 'header:In-Reply-To:1': 0.27; "i'm": 0.30; 'dawn': 0.31; 'idea,': 0.31; 'subject:About': 0.31; 'subject:some': 0.31; 'run': 0.32; 'but': 0.35; 'version': 0.36; 'installing': 0.36; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'sure': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'different': 0.65; 'dont': 0.67; 'installer': 0.84 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Ned Batchelder Subject: Re: About some problem Date: Thu, 02 Jan 2014 12:36:59 -0500 References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: c-50-133-228-126.hsd1.ma.comcast.net User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 In-Reply-To: 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: 18 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1388684233 news.xs4all.nl 2886 [2001:888:2000:d::a6]:42735 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:62989 On 1/2/14 12:05 PM, Rustom Mody wrote: > > i'm not sure about this but isnt it normally the case that different > version modules dont get mixed up like that? > IOW if pytesser was a properly packaged 2.7 module would python 3 be > able to get at it ?? > If you use a Python 3 installer it can succeed at installing a Python 2 package. Then you won't find out until you try to run the package that it is incompatible. A mechanism to prevent this seems like a good idea, but since it wasn't in place at the dawn of Python 3, it would be difficult to put in place now. -- Ned Batchelder, http://nedbatchelder.com