python multiprocessing

python 3.5

from multiprocessing import Process import time import os def func1(data):     for i in range(0, 10):         print(data) def func2():     for i in range(0, 10):         print("bye~!") def func3():     print('module name : ', __name__)     if hasattr(os, 'getppid'):         print('parent process : ', os.getppid())     print('process id : ', os.getpid()) if __name__ == "__main__":     proc1 = Process(target=func1, args=("hello",))     proc2 = Process(target=func2)     proc3 = Process(target=func3)     proc1.start()     proc2.start()     proc3.start()     proc1.join()     proc2.join()     proc3.join()