Python calling OS command line

cmd_win.py

import subprocess

def run_program(cmdargs):
	"""Execute an OS program with arguments(in list form), and return the (returncode, stdout, stderr) result"""
	p = subprocess.Popen(cmdargs, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
	output = p.communicate()
	return p.returncode, output[0], output[1]
	
# example;
# run_program(['ls', '-l'])