Threading in Python

A simple example on using threads in Python:

import threading
import time

class Shuttle(threading.Thread):
    def __init__(self, callsign):
        threading.Thread.__init__(self)
        self.callsign = callsign

    def run(self):
        for i in range(20):
            print self.callsign, i, "\n"
            time.sleep(3)

def runit(shuttles):
    for shuttle in shuttles:
        shuttle.start()
        time.sleep(0.1)

one = Shuttle("Galaxy")
two = Shuttle("Lightning")

runit([one, two])