#
import threading, time, random

def f(n):
	time.sleep(random.random())
	print n


for i in range(20):
	t = threading.Thread(target=f, args=(i,))
	while 5<threading.activeCount():
		time.sleep(0.1)
	t.setDaemon(0)
	t.start()
	print '\t', threading.activeCount()