import threading
import time

def thread_function(num):
  print(f"start thread {num}")
  time.sleep(5)
  print(f"stop thread {num}")

for a in range(5):
  x = threading.Thread(target=thread_function, args=(a,))
  x.start()

while threading.active_count() > 1:
    print(f"\rnb thread : {threading.active_count()}", end='', flush=True)
    time.sleep(1)

print('fini')

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