import dis,time  # 反汇编

import threading

def request():

    print('start request')

    v = yield

    print(v)

def target(func):

    try:

        s = time.time()

        print('start target')

        c = func()

        c.send(None)

        time.sleep(7)

        c.send(f'done: {time.time()-s}')

    except StopIteration:

        pass

def server(func):

    threading.Thread(target=target,args=(func,)).start()

server(request)

for i in range(10):

    time.sleep(1)

    print(i)

>>>

start target

start request

0

1

2

3

4

5

done: 7.004955053329468

6

7

8

9