Best way to capture output of another command-line program in Win32?

[Fredrik Lundh]

Peter A.Schott wrote:

> Not sure what I should do here.  I know that DOS/CMD can capture the output of
> EXE files in Win32.  I know that os.popen() has been recommended for this, but
> the couple of times I've tried, it didn't seem to work well.  I haven't had a
> lot of need to do this recently, but we're trying to automate some processes
> right now that require us to trap the output of a command line and react
> accordingly.
>
> Any suggestions on the best method for trapping this output?

import subprocess

(see the library reference for details.  if that doesn't work well, please post
a description of the problem, including tracebacks, test code, etc.)

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