python中的生产者以及消费者实现

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#!/usr/bin/python# -*- coding: UTF-8 -*-import threadingimport timeclass Producer(threading.Thread):    def run(self):        global count        while True:            if con.acquire():                if count > 1000:                    con.wait()                else:                    count = count+100                    msg = self.name+' produce 100, count=' + str(count)                    print msg                    con.notify()                con.release()                time.sleep(1)class Consumer(threading.Thread):    def run(self):        global count        while True:            if con.acquire():                if count < 100:                    con.wait()                else:                    count = count-3                    msg = self.name+' consume 3, count='+str(count)                    print msg                    con.notify()                con.release()                time.sleep(1)count = 500con = threading.Condition()def test():    for i in range(2):        p = Producer()        p.start()    for i in range(5):        c = Consumer()        c.start()if __name__ == '__main__':    test()

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