Pythonのasyncio

corutine_.py

def averager():
    total = 0
    count = 0
    average = 0
    while True:
        term = yield average
        total += term
        count += 1
        average = total / count

# avg = averager()
# next(avg)
# Out[20]: 0
# avg.send(3)
# Out[21]: 3.0
# avg.send(6)
# Out[22]: 4.5
# avg.send(10)
# Out[23]: 6.333333333333333