Process.join()

from multiprocessing import Process

def f(name):
    print('hello', name)

if __name__ == '__main__':
    p = Process(target=f, args=('bob',))
    p.start()
    p.join()

Process.join()

import multiprocessing as mp

def foo(q):
    q.put('hello')

if __name__ == '__main__':
    mp.set_start_method('spawn')
    q = mp.Queue()
    p = mp.Process(target=foo, args=(q,))
    p.start()
    print(q.get())
    p.join()

Process.join()

import multiprocessing as mp

def foo(q):
    q.put('hello')

if __name__ == '__main__':
    ctx = mp.get_context('spawn')
    q = ctx.Queue()
    p = ctx.Process(target=foo, args=(q,))
    p.start()
    print(q.get())
    p.join()

Process.join()

from multiprocessing import Process
import os

def info(title):
    print(title)
    print('module name:', __name__)
    print('parent process:', os.getppid())
    print('process id:', os.getpid())

def f(name):
    info('function f')
    print('hello', name)

if __name__ == '__main__':
    info('main line')
    p = Process(target=f, args=('bob',))
    p.start()
    p.join()

Similar codes

0 vote116 views1 answer
Racine carré python
Python
1 vote112 views1 answer
Sleep 5 seconds py
Python
2 votes108 views3 answers
Convert categorical data type to int in pandas
Python
0 vote109 views1 answer
Flask remove file after send_file
Python
7 votes105 views2 answers
Python pillow crop image
Python
3 votes100 views3 answers
Dot product python
Python
0 vote104 views1 answer
Python Hewwo wowwd
Python
0 vote128 views1 answer
Drop index in multiindex pandas
Python
3 votes111 views6 answers
Python printing
Python
1 vote101 views2 answers
Max float python
Python