Subprocess .wait() is not waiting
adam.c.bernier at kp.org
Fri Mar 24 15:59:28 EDT 2017
On Friday, March 24, 2017 at 12:41:22 PM UTC-7, Ian wrote:
> On Fri, Mar 24, 2017 at 12:42 PM, adam.c.bernier <adam.c.bernier at kp.org> wrote:
> > Hi,
> > I am on Windows 7. Python 2.7
> > I'm trying to have a program run another program using `subprocess.Popen`
> > import subprocess as sp
> > args = shlex.split(args)
> > proc = sp.Popen(args,stdout=sp.PIPE,stderr=sp.PIPE)
> > out, err = proc.communicate()
> > proc.wait()
> > But it *sometimes* doesn't wait and the other program -- which generates a set of 14 Excel files -- does not complete before control is returned to the calling program.
> > Any ideas on what I can do to make `subprocess.wait()` actually wait?
> > Thanks in advance for any assistance you might be able to provide.
> If that's what's happening it would be a bug. Are you sure that the
> other program isn't simply crashing or otherwise failing to complete?
> By the way, the wait in the code above is redundant because
> communicate already waits.
Thank you for the comment about the wait being redundant. Much appreciated.
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