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Re: subprocess.Popen instance hangs

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  Re: subprocess.Popen instance hangs xDog Walker <thudfoo@gmail.com> - 2013-08-29 13:26 -0700

#53254 — Re: subprocess.Popen instance hangs

On Thursday 2013 August 29 11:34, Tim Johnson wrote:
> 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

p = subprocess.Popen(args,stderr=subprocess.STDOUT,stdout=subprocess.PIPE)
for line in p.stdout:
    do_something(line)
p.wait()

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strainers.

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