스레드 실행 순서

강의코드 똑같이 작성했는데 실행순서가 왜 다른지 잘 모르겠습니다

3.9.5 버젼입니다.

터미널 창:

19:41:09 : Main-Thread: before creating thread 19:41:09 : Main-Thread: before running thread 19:41:09 : Main-Thread: wait for the thread to finish 19:41:09 : Main-Thread: all done 19:41:09 : Sub-Thread First: starting 19:41:12 : Sub-Thread First: finished

import logging
import threading
import time

# 스레드 실행 함수
def thread_func(name):
    logging.info("Sub-Thread %s: starting", name)
    time.sleep(3)
    logging.info("Sub-Thread %s: finished", name)
    

# 메인 영역
if __name__ == "__main__":
    # 메인 스레드의 흐름을 타는 시작점.

    # Logging format 설정
    format = "%(asctime)s : %(message)s"
    logging.basicConfig(format=format, level=logging.INFO, datefmt="%H:%M:%S")
    logging.info("Main-Thread: before creating thread")

    # 함수 인자 확인, 스레드 하나 생성, 타겟 : 스레드에서 만들 함수
    x = threading.Thread(target=thread_func, args=('First',))

    logging.info("Main-Thread: before running thread")

    # 서브 스레드 시작
    x.start()

    # x.join() # 이게 있으면 메인은 스탑되고 서브 스레드 끝나고 나서 밑에 실행

    logging.info("Main-Thread: wait for the thread to finish")

    logging.info("Main-Thread: all done")

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