#!coding:utf8 

import time
import threading


def fun():
    print "start fun"
    time.sleep(2)
    print "end fun"


print "main thread"
t1 = threading.Thread(target=fun,args=())
#t1.setDaemon(True)
t1.start()
time.sleep(1)
print "main thread end"

1 #!coding:utf8 
  2 
  3 import time
  4 import threading
  5 
  6 
  7 def fun():
  8     print "start fun"
  9     time.sleep(2)
 10     print "end fun"
 11 
 12 
 13 print "main thread"
 14 t1 = threading.Thread(target=fun,args=())
 15 t1.setDaemon(True)
 16 t1.start()
 17 time.sleep(1)
 18 print "main thread end"