Python的多进程问题

Question

from multiprocessing.managers import BaseManager
import queue

db = {"name": "123456"}
print(dir(db))

class RegisterManager(BaseManager):
    pass

def getUsers():
    return db

RegisterManager.register("getUsers", getUsers)

manager = RegisterManager(address = ("127.0.0.1", 5000), authkey=b"666")
if __name__ == "__main__":
    manager.start()
    userTable = manager.getUsers()
    print(dir(userTable))
    userTable["name"] = "王尼玛"
    manager.shutdown()

这个是我的代码，第22行会报错

第5行的输出

第19行的输出，从manager里调用函数取出来就没有__setitem__方法了
有没有办法让第20行的代码不报错？

Answer 1

用 SyncManager 便可，如

# -*- coding: utf-8 -*-
from multiprocessing.managers import SyncManager


class RegisterManager(SyncManager):
    pass


if __name__ == "__main__":
    manager = RegisterManager(address=("127.0.0.1", 5000), authkey=b"666")
    manager.start()
    userTable = manager.dict()
    userTable["key"] = "hi"
    manager.shutdown()