Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!news.albasani.net!newsfeed.freenet.ag!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 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'python,': 0.01; 'newbie': 0.03; 'wed,': 0.03; 'python.': 0.04; 'python?': 0.05; 'suppose': 0.05; 'subprocess': 0.09; 'pm,': 0.10; 'c++': 0.12; 'binary': 0.14; 'wrote:': 0.14; 'subject:python': 0.14; '"test"': 0.16; 'binaries': 0.16; 'proc': 0.16; 'cc:addr:python-list': 0.17; 'cheers,': 0.19; 'this?': 0.19; 'header:In-Reply-To:1': 0.21; 'cc:2**0': 0.22; 'cc:no real name:2**0': 0.23; 'received:209.85.213.46': 0.23; 'received:mail- yw0-f46.google.com': 0.23; "what's": 0.23; 'code': 0.24; 'example': 0.27; "i'm": 0.27; 'message-id:@mail.gmail.com': 0.28; 'subject:?': 0.29; 'import': 0.29; 'all,': 0.30; 'subject:How': 0.30; 'cc:addr:python.org': 0.30; 'cmd': 0.30; 'anyone': 0.32; 'named': 0.32; 'question': 0.34; 'chris': 0.34; 'module.': 0.35; 'test': 0.35; 'running': 0.37; 'takes': 0.37; 'received:google.com': 0.37; 'received:209.85': 0.37; 'parallel': 0.37; 'received:209.85.213': 0.37; 'two': 0.37; 'run': 0.38; 'subject:: ': 0.38; 'doing': 0.39; 'received:209': 0.39; 'subject:with': 0.39; 'best': 0.60; 'below': 0.61; '12:06': 0.84; 'bash:': 0.84; 'pony': 0.84; 'sender:addr:chris': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rebertia.com; s=google; h=domainkey-signature:mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=xBN/GBpZRsP1wZBtUV89vX6JOggdMYBRU7HZ2Vm3SaU=; b=IE4njITKkLHIUeIvKul/z6VZ2NL1L4M9wnAtNn1QwX95AsrNfuNfIzYoDN1xR+mZgT PnZMcITwJ5zgz+Cw10Ut15u2VvgiFD98MhRN1GTYfzHPkCJXypTn3a/EvFO7LL/WgiGc /haNKhsx1/IyrzKzQ1QLxCyoe5UwUSvGOzoXw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=rebertia.com; s=google; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=Q3OqXc5ZWufCw0qoZhntswEe3ZosXfKJSOu3gdYWYV0+1sFfqC/lFahU+wtt0dTVpC yA16B4KD3mPNktgyYgICRjqCjb6ulQR4X3jolP3gro8sFgtEuyMwNRNW8PF1qrBnrYEh amxFJXVPcwQ9qRts8gdThxPvRtIWE5fvrTV+I= MIME-Version: 1.0 Sender: chris@rebertia.com In-Reply-To: References: Date: Wed, 8 Jun 2011 12:15:23 -0700 X-Google-Sender-Auth: 3ebmTN6q6iX1fh_VsYX7hsEYjW4 Subject: Re: How to run C++ binaries with python in parallel? From: Chris Rebert To: Pony Content-Type: text/plain; charset=UTF-8 Cc: python-list@python.org 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: 28 NNTP-Posting-Host: 82.94.164.166 X-Trace: 1307560532 news.xs4all.nl 49038 [::ffff:82.94.164.166]:59643 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:7251 On Wed, Jun 8, 2011 at 12:06 PM, Pony wrote: > Hi all, > > I'm a newbie with python, and I have a question about running parallel > C++ binaries with python. > > Suppose I have a C++ binary named "test" and it takes two inputs, if I > want to run below three commands in bash: > test a b > test c d > test e f > > What's the best way to run it parallel with python? Use the `subprocess` module. > Can anyone give an example code for doing this? from subprocess import Popen cmds = [['test', 'a', 'b'], ['test', 'c', 'd'], ['test', 'e', 'f']] processes = [Popen(cmd) for cmd in cmds] for proc in processes: proc.wait() Cheers, Chris -- http://rebertia.com