Execute CLI commands in Python

Executing CLI commands / shell scripts / external programs in Python is easy.

Use subprocess.run

Since Python 3.5 (subprocess.call for earlier versions), subprocess.run is the recommended way to execute external shell scripts.

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import subprocess

output = subprocess.run(["echo", "hello", "world"], capture_output=True)
print(output.returncode) # outputs 0
print(output.stdout.decode("utf-8")) # outputs hello world