Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!rt.uk.eu.org!newsfeed.xs4all.nl!newsfeed2.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 0.003 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'output': 0.05; 'http': 0.09; 'parsed': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; '(python)': 0.16; 'concurrent': 0.16; 'investigate': 0.16; 'justin': 0.16; 'received:80.91.229.3': 0.16; 'received:dip0.t-ipconnect.de': 0.16; 'received:plane.gmane.org': 0.16; 'received:t-ipconnect.de': 0.16; 'subject:user': 0.16; 'threads.': 0.16; 'all,': 0.19; '(in': 0.22; 'header:User- Agent:1': 0.23; 'question': 0.24; 'header:X-Complaints-To:1': 0.27; '(which': 0.31; 'gives': 0.31; 'writes:': 0.31; 'there.': 0.32; '"the': 0.34; 'knowledge': 0.35; 'but': 0.35; 'there': 0.35; 'belong': 0.36; 'charset:us-ascii': 0.36; 'too': 0.37; 'to:addr :python-list': 0.38; 'realize': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'first': 0.61; 'received:217': 0.63; 'skip:n 10': 0.64; 'more': 0.64; 'different': 0.65; 'details': 0.65; 'believe': 0.68 X-Injected-Via-Gmane: http://gmane.org/ To: python-list@python.org From: dieter Subject: Re: AMQP listening and user-facing daemon Date: Tue, 09 Jul 2013 09:05:19 +0200 References: <51D9E463.7030403@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Gmane-NNTP-Posting-Host: pd9e0a14d.dip0.t-ipconnect.de User-Agent: Gnus/5.1008 (Gnus v5.10.8) XEmacs/21.4.22 (linux) Cancel-Lock: sha1:bBp68enL4I/KNRyGXCzPWU0qn3U= 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: 23 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1373353533 news.xs4all.nl 15872 [2001:888:2000:d::a6]:38241 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:50215 Justin Chiu writes: > What is the best approach to writing a concurrent daemon that can > execute callbacks for different types of events (AMQP messages, parsed > output of a subprocess, HTTP requests)? I fear your question is too specific (which means you must investigate yourself). First of all, it is always very difficult to answer questions like "the best way" -- many many details are involved there. You provided details but to appreciate them one has to know "AMQP", "Openstack Notifications", "twisted", "greenlets", ... There will not be a lot of people with this knowledge (I do not belong to them). I believe that you will be able to realize a solution based on (Python) threads. It gives you the more freedom than "twisted" or "greenlets". But a different approach might be "better" (in some respect).