python报错：module 'os' has no attribute 'gitpid'求解🙏🏻

Question

导入os后，使用getpid()运行报错，但是不知道到底因为什么，求解决办法！感谢！

import time
import multiprocessing
import os


#2个要同时执行的函数
def music():
    """函数1"""
    print("music子进程名字：",multiprocessing.current_process())
    print("music子进程编号：",os.getgid())
    print("music所属主进程的编号：",os.getppid())
    for i in range(5): #执行5次
        print("听音乐中。。。")
        time.sleep(0.2) #延迟2秒，目的是让效果对比更明显一些
        
def movie(a,b):
    print("movie子进程的名字：",multiprocessing.current_process())
    print("movie子进程编号：",os.getgid())
    print("movie所属主进程的编号：",os.getppid())
    for i in range(5):
        print("看视频中。。。")
        time.sleep(0.2)
if __name__ =='__main__':
    #创建子进程
    music_process=multiprocessing.Process(target=music())
    movie_process=multiprocessing.Process(target=movie,kwargs={"a":30,"b":40})
    #启用进程
    music_process.start()
    movie_process.start()
    print("主进程编号：",os.getgid())

E:\python\python.exe D:\PycharmProject\Data_exercise\multiprocess.py 
music子进程名字： <_MainProcess name='MainProcess' parent=None started>
Traceback (most recent call last):
  File "D:\PycharmProject\Data_exercise\multiprocess.py", line 25, in <module>
    music_process=multiprocessing.Process(target=music())
  File "D:\PycharmProject\Data_exercise\multiprocess.py", line 10, in music
    print("music子进程编号：",os.getgid())
AttributeError: module 'os' has no attribute 'getgid'

Answer 1

getgid->getpid