Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!news.stack.nl!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 0.004 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'indeed,': 0.07; 'python': 0.07; '>>>>': 0.09; 'ironpython': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:80.91.229.12': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'received:lo.gmane.org': 0.09; '>>>': 0.12; 'wrote:': 0.14; 'immutable': 0.16; 'received:dip.t-dialin.net': 0.16; 'received:t-dialin.net': 0.16; 'sees': 0.16; 'subject:between': 0.16; 'subject:lines': 0.16; 'objects,': 0.23; '.net': 0.25; 'from:addr:web.de': 0.31; 'does': 0.31; 'to:addr:python-list': 0.32; 'header:X-Complaints-To:1': 0.34; 'point': 0.35; 'steven': 0.38; 'them,': 0.38; 'received:org': 0.38; 'to:addr:python.org': 0.39; 'header:Mime-Version:1': 0.39; 'would': 0.40; 'header:Received:5': 0.40; 'skip:2 10': 0.61; 'free': 0.62; 'copyright': 0.63; 'rights': 0.68; 'fit.': 0.73; 'subject:line': 0.73; 'subject:one': 0.73; 'reserved.': 0.79; 'subject:there': 0.91 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Peter Otten <__peter__@web.de> Subject: Re: is there a difference between one line and many lines Date: Thu, 21 Apr 2011 14:35:25 +0200 Organization: None References: <4db01f72$0$29978$c3e8da3$5496439d@news.astraweb.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7Bit X-Gmane-NNTP-Posting-Host: p5084ba47.dip.t-dialin.net 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: 22 NNTP-Posting-Host: 82.94.164.166 X-Trace: 1303389323 news.xs4all.nl 41110 [::ffff:82.94.164.166]:43714 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:3793 Steven D'Aprano wrote: > but: > >>>> a = 1001; b = 10001; a is b > False I would hope so ;) > The point is that Python is free to re-use immutable objects, or not re- > use them, as it sees fit. Indeed, and I even found a Python implementation on my harddisk that does what you intended to show: $ ipy IronPython 1.1.1 (1.1.1) on .NET 2.0.50727.1433 Copyright (c) Microsoft Corporation. All rights reserved. >>> a = 1001; b = 1001; a is b False