import os
import subprocess
command = ["executable", "argument_1", "argument_2"]
with open(os.devnull, "w") as fnull:
result = subprocess.call(command, stdout = fnull, stderr = fnull)
If the command doesn’t have any arguments, you can just provide it as a simple string.
If your command relies on shell features like wildcards, pipes, or environment variables, you’ll need to provide the whole command as a string, and also specify shell = True. This should be avoided, though, since it represents a security hazard if the contents of the string aren’t carefully validated.