On May 14, 11:57 am, Chris Curvey <ccur...@gmail.com> wrote:
> I'm trying to get this invocation right, and it is escaping me. How
> can I capture the stdout and stderr if I launch a subprocess using
> subprocess.check_call()? The twist here is that the call is running
> from within a Windows service.
>
> I've tried:
>
> check_call("mycmd.exe", stdout=subprocess.PIPE) [raises an exception
> "An integer is required"]
>
> check_call("mycmd.exe", stdout=file("c:\\temp\\foobar.txt", "w"))
> [raises an exception "An integer is required"]
Ahhh, Blake put me on the right track. If you want any of the
streams, you have to supply values for all of them, like so:
p = subprocess.Popen(step, shell=True
stdout=subprocess.PIPE,
stdin=subprocess.PIPE,
stderr=subprocess.PIPE)
(stdout, stderr) = p.communicate()
and, incidentally, it appears that you have to use UNC paths in your
Popen call -- drive letters won't work.
so "dir \\foobar\myshare\mydir" will work, but "dir j:\mydir" will
not.
Many thanks for all your assistance.
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