[Python-Dev] why multiprocessing use os._exit (original) (raw)

Tao Qingyun qingyun.tao at tophant.com
Thu Mar 2 23:51:59 EST 2017

in multiprocessing/forking.py#129, os._exit cause child process don't close open file. For example:

    from multiprocessing import Process

    def f():
        global log  # prevent gc close the file
        log = open("info.log", "w")
        log.write("***hello world***\n")

    p = Process(target=f)
    p.start()
    p.join()

and the info.log will be empty. why not use sys.exit ?

Thanks

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