python多进程

获取进程信息

import os
os.getpid()
os.getppid()

多进程 multiprocessing的Process

multiprocessing提供一个Process代表进程对象。

from multiprocessing import Process
import os
def run_proc(name):
    print('run child process %s(%s)...'%(name,os.getpid()))

if __name__=="__main__":
    print("Parent process %s."%os.getpid())
    p = Process(target  = run_proc,args = ('test',))
    print('child process will start')
    p.start()
    p.join()
    print("child process end"
    )

POOL待续