python-threading/02_namingThreadsAndLogging at master · abhinuvpitale/python-threading · GitHub

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import logging
import threading
import time

logging.basicConfig(level=logging.DEBUG,
                    format='[%(levelname)s] (%(threadName)-10s) %(message)s',
                    )

def worker():
    logging.debug('Starting')
    time.sleep(2)
    logging.debug('Exiting')

def my_service():
    logging.debug('Starting')
    time.sleep(3)
    logging.debug('Exiting')

t = threading.Thread(name='my_service', target=my_service)
w = threading.Thread(name='worker', target=worker)
w2 = threading.Thread(target=worker)

w.start()
w2.start()
t.start()

# Code reaches here, but the program is not quit until all the threads are successfully completed.
print('Exit Main')

''' OUTPUT
Exit Main
[DEBUG] (worker    ) Starting
[DEBUG] (Thread-1  ) Starting
[DEBUG] (my_service) Starting
[DEBUG] (Thread-1  ) Exiting
[DEBUG] (worker    ) Exiting
[DEBUG] (my_service) Exiting

Process finished with exit code 0

'''