def th1():
a = 0
for i in range(10):
a = a + 1
def th2():
while True:
print("Loading")
Assume that when there are two functions, the th1 and th2 functions are rotated together by multi-threading. At this time, is there a way to run the th2 function only while the th1 function is running, and then automatically terminate the th2 function when all the operations of the th1 function are completed?
python multithreading
is_alive can check if the thread is still running.
import threading
import time
def th1():
print('th1 started.')
time.sleep(3)
print('\nth1 exiting.')
def th2(t):
print('th2 started.')
while True:
if not t.is_alive():
break
print('.', end='', flush=True)
time.sleep(.3)
print('\nth2 exiting.')
t1 = threading.Thread(target=th1)
t2 = threading.Thread(target=th2, args=(t1,))
t1.start()
t2.start()
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