python thread(ผมขอถามผู้รู้หน่อยนะครับ คือผมทดลองการทำงานของ thread in python )

import thread
import threading
from time import sleep

def myfunction1(arg1,arg2):
    for i in range(10):
        sleep(arg2)
        print ' '+"running: %s - numner %d" %(arg1,i)
        print "end threading" + ' ' + arg1

def myfunction2(arg1,arg2):
    for i in range(10):
        sleep(arg2)
        print ' '+"running: %s - numner %d" %(arg1,i)
        print "end threading" + ' ' + arg1

def main():
    print"1"


if __name__ == "__main__":
    main()
    t = threading.Thread(target=myfunction1, args =("Prog01",1));
    c = threading.Thread(target=myfunction2, args =("Prog02",0.5));
    #t.deamon = True
    t.start()
    #c.deamon = True
    c.start()