ThreadPoolExecutorAndProcessPoolExecutor.py

import time
from concurrent.futures import ThreadPoolExecutor, ProcessPoolExecutor


class A(object):

    def __init__(self, name, b_list):
        self.name = name
        self.bs = b_list

    def sign(self):
        p = ProcessPoolExecutor(4)
        for i in self.bs:
            p.submit(i.sign_one)
        p.shutdown()
        print("ok")


class B(object):

    def __init__(self, name, ):
        self.name = name

    def print(self):
        print(self.name)
        time.sleep(3)

    def sign_one(self):
        t = ThreadPoolExecutor(5)
        t.submit(self.print)
        t.shutdown()


if __name__ == '__main__':
    bb = [B("b1"), B("b2")]
    aa = A("a1", bb)
    aa.sign()