import subprocess
import os
import time

def command(command):
    ar = []
    command = command.split(" ")
    for c in command:
        ar.append(c)
    process = subprocess.Popen(ar, stdout=subprocess.PIPE,stderr=subprocess.PIPE)
    p=process.poll()
    output = process.communicate()[0]
    print(output)

command('echo hello')
command('python runtest.py')