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Date: Thu, 29 Aug 2013 10:34:18 -0800
From: Tim Johnson <tim@akwebsoft.com>
To: Python ML <python-list@python.org>
Subject: subprocess.Popen instance hangs
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Xref: csiph.com comp.lang.python:53250

using Python 2.7.1 on OS X 10.7.5

I'm managing a process of drush using an instance of subprocess.Popen

The process has a '--verbose' option. When that option is passed as
part of the initializer `args' argument, the process will hang.

It should be no surprise as drush output with the --verbose option
can be _extremely_ verbose, and I can do without it, but I would
like to learn how to handle it. I've googled this topic, but my poor
little brain is yet to sort out all of the content found.

## my relevant code follows :
p = subprocess.Popen(args,stderr=subprocess.STDOUT,stdout=subprocess.PIPE)
## wait() is 'forever' if '--verbose' used
exit_status = p.wait()
output = p.stdout.read()
## done

I 'suspect' that using a tempfile may be the solution, if so, I
could use some examples.

thanks
-- 
Tim 
tim at tee jay forty nine dot com or akwebsoft dot com
http://www.akwebsoft.com