#!/usr/bin/env python

import threading
from time import sleep, time, ctime

loops = [ 4, 2 ]

def loop(nloop, nsec):
    print 'start loop', nloop, 'at:', ctime(time())
    sleep(nsec)
    print 'loop', nloop, 'done at:', ctime(time())

def main():
    print 'starting threads...'
    threads = []
    nloops = range(len(loops))

    for i in nloops:
        t = threading.Thread(target=loop,
	    args=(i, loops[i]))
        threads.append(t)

    for i in nloops:            # start threads
        threads[i].start()

    for i in nloops:            # wait for all
        threads[i].join()       # threads to finish

    print 'all DONE at:', ctime(time())

if __name__ == '__main__':
    main()