event

from threading import Thread,Event
import time
event=Event()
def wait():
    print('wait==')
    time.sleep(2)
    print('over!')
    event.set()
def go(i):
    print(f'{i},Zzzzzz~~~')
    event.wait()
    print(f'{i},gogogo!!')
if __name__ == '__main__':
    t_w = Thread(target=wait)
    t_w.start()
    for i in range(5):
        t_go=Thread(target=go,args=(i,))
        t_go.start()