import random
import time

def sleep(seconds):
    start = time.time()
    while time.time()-start < seconds:
        yield

def produce(consumer):
    while True:
        yield from sleep(0.5)
        data = random.randint(1,100)
        consumer.send(data)

def consume():
    sum_=0
    count=0
    while True:
        data=yield
        print('Got data:', data)
        sum_ += data
        count +=1
        print('Sum: {:4d} Average: {:06.2f}\n'.format(sum_,sum_/count))

def another():
    while True:
        print('\n    Hello form another def!\n')
        yield from sleep(1)

if __name__ == '__main__':
    consumer = consume()
    next(consumer)

    producer = produce(consumer)
    task = another()
    while True:
        next(producer)
        next(task)