How to call an external command

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How do you call an external command (as if I'd typed it at the Unix shell or Windows command prompt) from within a Python script?
Nov 19, 2020 in Python by anonymous
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1 answer to this question.

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Look at the subprocess module in the standard library:

import subprocess
subprocess.run(["ls", "-l"])

The advantage of subprocess vs. system is that it is more flexible (you can get the stdout, stderr, the "real" status code, better error handling, etc...).

The official documentation recommends the subprocess module over the alternative os.system():

The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using this function [os.system()].

answered Nov 19, 2020 by Gitika
• 65,850 points

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