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Re: subprocess call is not waiting.

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From Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject Re: subprocess call is not waiting.
Date Tue, 18 Sep 2012 15:20:59 -0400
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On Tue, 18 Sep 2012 14:54:41 +0100, andrea crotti
<andrea.crotti.0@gmail.com> declaimed the following in
gmane.comp.python.general:

> I have a similar problem, something which I've never quite understood
> about subprocess...
> Suppose I do this:
> 
> proc = subprocess.Popen(['ls', '-lR'], stdout=subprocess.PIPE,
> stderr=subprocess.PIPE)
> 
> now I created a process, which has a PID, but it's not running apparently...
> It only seems to run when I actually do the wait.
> 
> I don't want to make it waiting, so an easy solution is just to use a
> thread, but is there a way with subprocess?

	Unless you have a really massive result set from that "ls", that
command probably ran so fast that it is blocked waiting for someone to
read the PIPE.

-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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Thread

subprocess call is not waiting. paulstaten@gmail.com - 2012-09-13 08:17 -0700
  Re: subprocess call is not waiting. MRAB <python@mrabarnett.plus.com> - 2012-09-13 16:35 +0100
  Re: subprocess call is not waiting. woooee@gmail.com - 2012-09-13 10:24 -0700
    Re: subprocess call is not waiting. Hans Mulder <hansmu@xs4all.nl> - 2012-09-14 10:52 +0200
  Re: subprocess call is not waiting. Chris Rebert <clp2@rebertia.com> - 2012-09-13 22:27 -0700
  Re: subprocess call is not waiting. paulstaten@gmail.com - 2012-09-14 05:22 -0700
    Re: subprocess call is not waiting. Wanderer <wanderer@dialup4less.com> - 2012-09-14 10:38 -0700
    Re: subprocess call is not waiting. Chris Rebert <clp2@rebertia.com> - 2012-09-14 21:02 -0700
      Re: subprocess call is not waiting. paulstaten@gmail.com - 2012-09-15 05:59 -0700
        Re: subprocess call is not waiting. andrea crotti <andrea.crotti.0@gmail.com> - 2012-09-18 14:54 +0100
        Re: subprocess call is not waiting. Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-09-18 15:20 -0400
        Re: subprocess call is not waiting. andrea crotti <andrea.crotti.0@gmail.com> - 2012-09-19 11:26 +0100
          Re: subprocess call is not waiting. Hans Mulder <hansmu@xs4all.nl> - 2012-09-19 15:23 +0200
            Re: subprocess call is not waiting. Gene Heskett <gheskett@wdtv.com> - 2012-09-19 11:57 -0400
            Re: subprocess call is not waiting. andrea crotti <andrea.crotti.0@gmail.com> - 2012-09-19 17:34 +0100
              Re: subprocess call is not waiting. Hans Mulder <hansmu@xs4all.nl> - 2012-09-19 19:31 +0200

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