run_cmd.py

import os
import subprocess

def run_cmd(cmd="hostname",  work_dir=None):
    try:
        logging.critical("let's execute cmd=%s", cmd)
        pipe = subprocess.Popen(cmd, shell=True, cwd=work_dir, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        out, error = pipe.communicate()
        print(out, error)
        pipe.wait()
    except:
        import traceback
        print(traceback.print_exc())


if __name__ == '__main__':
    run_cmd("ls -ltr")