#encoding=utf-8 
import threading 
import random 
import time 
from Queue import Queue 

class Producer(threading.Thread): 

def __init__(self, threadname, queue): 
threading.Thread.__init__(self, name = threadname) 
self.sharedata = queue 

def run(self): 
for i in range(20): 
print self.getName(),'adding',i,'to queue' 
self.sharedata.put(i) 
time.sleep(random.randrange(10)/10.0) 
print self.getName(),'Finished' 


# Consumer thread 

class Consumer(threading.Thread): 


def __init__(self, threadname, queue): 
threading.Thread.__init__(self, name = threadname) 
self.sharedata = queue 


def run(self): 

for i in range(20): 
print self.getName(),'got a value:',self.sharedata.get() 
time.sleep(random.randrange(10)/10.0) 
print self.getName(),'Finished' 


# Main thread 

def main(): 

queue = Queue() 
producer = Producer('Producer', queue) 
consumer = Consumer('Consumer', queue) 
print 'Starting threads ...' 
producer.start() 
consumer.start() 
producer.join() 
consumer.join() 
print 'All threads have terminated.' 
if __name__ == '__main__': 
main()