threading.py

#!/usr/bin/env python

import threading
import subprocess

results = []

def launch_job(arg):
    results.append(subprocess.Popen(['/bin/echo %s' % arg], shell=True, stdout=subprocess.PIPE).communicate()[0])
    
for i in range(100):
    thread = threading.Thread(target=launch_job, args=[i])
    thread.start()

print results