Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!feeder.news-service.com!news2.euro.net!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 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; '*not*': 0.05; 'scaling': 0.05; 'suppose': 0.05; 'hettinger': 0.07; 'threads,': 0.07; 'pm,': 0.11; '>>>': 0.12; 'am,': 0.14; 'gui': 0.14; 'wrote:': 0.14; '(aahz)': 0.16; 'calderone': 0.16; 'from:addr:torriem': 0.16; 'from:name:michael torrie': 0.16; 'model.': 0.16; 'subject:GIL': 0.16; 'thread.': 0.16; 'threading': 0.16; '16,': 0.16; '(i.e.': 0.18; 'subject:Questions': 0.19; '(or': 0.22; 'header:In-Reply- To:1': 0.22; 'raymond': 0.22; 'bound': 0.29; 'message- id:@gmail.com': 0.30; 'i/o': 0.31; 'jean-paul': 0.31; 'threads': 0.31; 'fact': 0.31; 'however,': 0.31; "can't": 0.31; 'to:addr :python-list': 0.32; 'received:192': 0.34; 'header:User-Agent:1': 0.35; 'put': 0.35; 'rather': 0.36; 'data': 0.37; 'received:192.168': 0.37; 'useful': 0.37; 'apr': 0.38; 'subject:web': 0.38; 'thread': 0.38; 'user': 0.38; 'but': 0.38; 'received:org': 0.38; 'to:addr:python.org': 0.39; 'header:Received:5': 0.40; 'subject:about': 0.66; 'share': 0.67; 'article': 0.75; '10:44': 0.84; 'subject:services': 0.93 X-Virus-Scanned: amavisd-new at torriefamily.org Date: Sat, 16 Apr 2011 16:10:04 -0600 From: Michael Torrie User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.15) Gecko/20110307 Fedora/3.1.9-0.39.b3pre.fc14 Thunderbird/3.1.9 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Questions about GIL and web services from a n00b References: <4DA8734C.1080706@WindsorCircle.com> <1302887012.27269.2.camel@tim-laptop> <8e1fc76f-b003-4ead-9f58-4c2a7a3ef85d@bl1g2000vbb.googlegroups.com> In-Reply-To: <8e1fc76f-b003-4ead-9f58-4c2a7a3ef85d@bl1g2000vbb.googlegroups.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit 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: 1302993754 news.xs4all.nl 41110 [::ffff:82.94.164.166]:60438 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:3354 On 04/16/2011 02:53 PM, Jean-Paul Calderone wrote: > On Apr 16, 10:44 am, a...@pythoncraft.com (Aahz) wrote: >> In article , >> Raymond Hettinger wrote: >> >> >> >>> Threading is really only an answer if you need to share data between >>> threads, if you only have limited scaling needs, and are I/O bound >>> rather than CPU bound >> >> Threads are also useful for user interaction (i.e. GUI apps). >> > > I suppose that's why most GUI toolkits use a multithreaded model. Many GUI toolkits are single-threaded. And in fact with GTK and MFC you can't (or shouldn't) call GUI calls from a thread other than the main GUI thread. That's not to say GUI programs don't use threads and put the GUI it its own thread. But GUI toolkits are often *not* multithreaded. They are, however, often asynchronous, which is often more cost-effective than multi-threaded.