Python script to test an execution of external commands by subprocess.

test_subprocess.py

#! /usr/local/bin/python3.6
"""
Test of subprocess module
"""
import subprocess as sp
import sys
import traceback


class TestSubprocess:
    def exec(self):
        cmds = ["ls", "-l"]
        try:
            # Capturing：args, returncode
            res = sp.run(cmds)
            print(res.args)
            print(res.returncode)
            print("---")
            # Capturing：args, returncode, stdout(coding: utf-8)
            res = sp.run(cmds, stdout=sp.PIPE, encoding="utf-8")
            print(res.args)
            print(res.returncode)
            print(res.stdout)
        except Exception as e:
            raise


if __name__ == '__main__':
    try:
        obj = TestSubprocess()
        obj.exec()
    except Exception as e:
        traceback.print_exc()
        sys.exit(1)