Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #2488

Re: Get subprocess error output from shell command

Path csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!news.albasani.net!feeder.news-service.com!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <bsk16@case.edu>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.011
X-Spam-Evidence '*H*': 0.98; '*S*': 0.00; 'subprocess': 0.09; 'pm,': 0.11; 'subject:error': 0.12; 'error:': 0.14; 'wrote:': 0.14; '#the': 0.16; 'confusing.': 0.16; 'pipe,': 0.16; 'popen,': 0.16; 'stderr': 0.16; 'stdout': 0.16; 'subject:command': 0.16; 'subject:subprocess': 0.16; 'capture': 0.16; 'permission': 0.16; 'shell': 0.19; 'command': 0.19; 'header:In-Reply-To:1': 0.22; 'doc': 0.23; 'says': 0.25; "i'm": 0.26; 'putting': 0.26; 'object': 0.27; 'message-id:@mail.gmail.com': 0.28; 'error': 0.29; 'sat,': 0.29; 'skip:" 30': 0.29; "skip:' 30": 0.29; 'list': 0.30; 'do.': 0.31; 'it.': 0.31; 'url:library': 0.31; 'import': 0.32; 'to:addr :python-list': 0.32; 'url:docs': 0.33; 'bit': 0.33; 'using': 0.34; 'communicate': 0.35; 'like:': 0.35; 'running': 0.36; 'getting': 0.36; 'url:python': 0.37; 'apr': 0.38; 'received:google.com': 0.38; 'but': 0.38; 'url:org': 0.38; 'docs': 0.39; 'to:addr:python.org': 0.39; 'how': 0.39; 'would': 0.40; '2011': 0.62; 'url:3': 0.68; 'url:0': 0.69; 'subject:Get': 0.74; 'received:129': 0.84; 'skip:~ 30': 0.84
MIME-Version 1.0
In-Reply-To <dc8e1dcd-303c-4e07-bdda-1b12277976f0@f31g2000pri.googlegroups.com>
References <dc8e1dcd-303c-4e07-bdda-1b12277976f0@f31g2000pri.googlegroups.com>
Date Sat, 2 Apr 2011 23:25:58 -0400
Subject Re: Get subprocess error output from shell command
From Benjamin Kaplan <benjamin.kaplan@case.edu>
To python-list@python.org
Content-Type text/plain; charset=ISO-8859-1
X-Junkmail-Status score=10/49, host=mpv1.tis.cwru.edu
X-Junkmail-Signature-Raw score=unknown, refid=str=0001.0A020208.4D97E8C7.008F,ss=1,fgs=0, ip=74.125.82.182, so=2010-12-23 16:51:53, dmn=2009-09-10 00:05:08, mode=single engine
X-Junkmail-IWF false
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.12
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive <http://mail.python.org/pipermail/python-list>
List-Post <mailto:python-list@python.org>
List-Help <mailto:python-list-request@python.org?subject=help>
List-Subscribe <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.149.1301801169.2990.python-list@python.org> (permalink)
Lines 34
NNTP-Posting-Host 82.94.164.166
X-Trace 1301801169 news.xs4all.nl 41117 [::ffff:82.94.164.166]:42909
X-Complaints-To abuse@xs4all.nl
Xref x330-a1.tempe.blueboxinc.net comp.lang.python:2488

Show key headers only | View raw

On Sat, Apr 2, 2011 at 11:07 PM, Gnarlodious <gnarlodious@gmail.com> wrote:
> I'm running a shell command like:
> plutil -convert xml1 "~/Library/Preferences/iCab/iCab 4 Bookmarks"
>
> Getting error:
> ~/Library/Preferences/iCab/iCab 4 Bookmarks: Permission denied
>
> How would I capture this error using a method of subprocess?
>
> I read the doc at
> http://docs.python.org/release/3.0.1/library/subprocess.html
>
> but confess I don't understand it.
>
> -- Gnarlie
> http://Gnarlodious.com/
> --

Yeah, the subprocess docs are a bit confusing. Here's what you need to do.



from subprocess import Popen, PIPE

#create a Popen object
#note that I'm putting the command in a list
#the stdout=PIPE thing says I want to capture it
process = Popen( ['plutil', '-convert', 'xml1',
'~/Library/Preferences/iCab/iCab 4 Bookmarks'], stdout = PIPE, stderr
= PIPE)

#then, you communicate with the process

outdata, errdata = process.communicate()

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Get subprocess error output from shell command Gnarlodious <gnarlodious@gmail.com> - 2011-04-02 20:07 -0700
  Re: Get subprocess error output from shell command Benjamin Kaplan <benjamin.kaplan@case.edu> - 2011-04-02 23:25 -0400
    Re: Get subprocess error output from shell command Gnarlodious <gnarlodious@gmail.com> - 2011-04-02 20:36 -0700
  Re: Get subprocess error output from shell command Chris Rebert <clp2@rebertia.com> - 2011-04-02 20:29 -0700
    Re: Get subprocess error output from shell command Gnarlodious <gnarlodious@gmail.com> - 2011-04-02 20:50 -0700
      Re: Get subprocess error output from shell command Benjamin Kaplan <benjamin.kaplan@case.edu> - 2011-04-03 00:03 -0400
      Re: Get subprocess error output from shell command Chris Rebert <clp2@rebertia.com> - 2011-04-02 21:10 -0700
    Re: Get subprocess error output from shell command Gnarlodious <gnarlodious@gmail.com> - 2011-04-02 21:00 -0700
      Re: Get subprocess error output from shell command Chris Rebert <clp2@rebertia.com> - 2011-04-02 21:14 -0700

csiph-web