Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed6.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; 'situation.': 0.05; 'received:verizon.net': 0.07; 'terry': 0.07; 'python': 0.08; '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; 'am,': 0.12; 'gained': 0.16; 'mylist': 0.16; 'reedy': 0.16; 'roy': 0.16; 'wrote:': 0.16; 'linux': 0.17; 'subject:list': 0.18; '>>>': 0.18; 'jan': 0.19; 'memory': 0.21; 'header:In-Reply-To:1': 0.22; "python's": 0.24; 'skip:[ 10': 0.27; 'does': 0.32; 'anyone': 0.32; 'sort': 0.33; 'there': 0.33; 'to:addr:python-list': 0.33; 'header :User-Agent:1': 0.34; 'duplicate': 0.34; 'header:X-Complaints- To:1': 0.35; 'anything': 0.36; 'useful': 0.36; 'think': 0.38; 'received:org': 0.38; 'steven': 0.38; 'subject:: ': 0.39; 'under': 0.39; 'help': 0.39; 'header:Mime-Version:1': 0.39; 'else': 0.39; 'subject:with': 0.39; 'why': 0.39; 'to:addr:python.org': 0.39; 'more': 0.60; 'care,': 0.64; 'discovered': 0.68; 'article,': 0.84; 'instruct': 0.84 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: Terry Reedy Subject: Re: PC locks up with list operations Date: Mon, 12 Sep 2011 16:53:24 -0400 References: <4e5e2a0c$0$29965$c3e8da3$5496439d@news.astraweb.com> <4e6dc66e$0$29986$c3e8da3$5496439d@news.astraweb.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Gmane-NNTP-Posting-Host: pool-74-109-121-73.phlapa.fios.verizon.net User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0) Gecko/20110812 Thunderbird/6.0 In-Reply-To: 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: 25 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1315860909 news.xs4all.nl 2434 [2001:888:2000:d::a6]:45070 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:13199 On 9/12/2011 7:40 AM, Roy Smith wrote: > In article<4e6dc66e$0$29986$c3e8da3$5496439d@news.astraweb.com>, > Steven D'Aprano wrote: > >>> mylist = [0]*12345678901234 >> [...] >>> Apart from "Then don't do that!", is there anything I can do to prevent >>> this sort of thing in the future? Like instruct Python not to request more >>> memory than my PC has? >> >> >> For anyone who may care, I can report that ulimit under Linux will help with >> this situation. >> [...] >> Does anyone else think it would be useful for Python's memory manager to >> enforce user-settable limits? > > Not me. You've already discovered that ulimit does exactly what you > want. Why would be gained by having Python duplicate this functionality? Having it on Windows. -- Terry Jan Reedy