lesson03_exitcode.py

# SuperFastPython.com
# example of checking the exit status of a child process
from time import sleep
from multiprocessing import Process

# custom function to be executed in a child process
def task():
 # block for a moment
 sleep(1)

# protect the entry point
if __name__ == '__main__':
 # create the process
 process = Process(target=task)
 # report the exit status
 print(process.exitcode)
 # start the process
 process.start()
 # report the exit status
 print(process.exitcode)
 # wait for the process to finish
 process.join()
 # report the exit status
 print(process.exitcode)