#!/usr/bin/env python

 # -*- coding:utf-8 -*-

 import time

 def consumer():

     r = ''

     while True:

         n = yield r

         if not n:

             return

         print('[CONSUMER] Consumeing %s...' % n)

         time.sleep(1)

         r = '200 OK'

 def produce(c):

     c.next()

     n = 0

     while n < 5:

         n = n + 1

         print('[PRODUCER] Producing %s...' % n)

         r = c.send(n)

         print('[PRODUCER] Consumer return: %s' % r)

     c.close()

 if __name__ == '__main__':

     c = consumer()

     produce(c)