How to get stdout into a string (Python) [duplicate]

This question already has answers here: Store output of subprocess.Popen call in a string [duplicate] (15 answers) Closed 8 years ago.

I need to capture the stdout of a process I execute via subproc开发者_JAVA技巧ess into a string to then put it inside a TextCtrl of a wx application I'm creating. How do I do that?

EDIT: I'd also like to know how to determine when a process terminates

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From the subprocess documentation:

from subprocess import *
output = Popen(["mycmd", "myarg"], stdout=PIPE).communicate()[0]

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Take a look at the subprocess module.

http://docs.python.org/library/subprocess.html

It allows you to do a lot of the same input and output redirection that you can do in the shell.

If you're trying to redirect the stdout of the currently executing script, that's just a matter of getting a hold of the correct file handle. Off the top of my head, stdin is 0, stdout is 1, and stderr is 2, but double check. I could be wrong on that point.