Python3:将类作为单独的过程进行调用

时间:2018-08-27 06:45:05

标签: python-3.x class process multiprocessing python-multiprocessing

我正在处理来自多处理的Process库,并且试图从另一个文件中调用一个类作为一个单独的进程,但是,出现此错误:

Traceback (most recent call last):
File "/usr/lib/python3.6/multiprocessing/process.py", line 258, in _bootstrap
self.run()
File "/usr/lib/python3.6/multiprocessing/process.py", line 93, in run
self._target(*self._args, **self._kwargs)
TypeError: 'tuple' object is not callable

,它仍然与我的标准输出存在于同一进程中:

20472 __main__
20472 CALL
internal func call
Leaving Call
Process Process-1:
#This is where the error prints out
Leaving main

其中20472是pid。

主文件:

import CALL
from multiprocessing import Process
import os

if __name__ == '__main__':
    print(os.getpid(),__name__)
    p = Process(target=(CALL.Call(),))
    p.start()
    p.join()
    print("Leaving main")

import os

调用类文件:

class Call():

    def __init__(self):
        print(os.getpid(), __name__)
        self.internal()

    def __exit__(self):
        print("Leaving Call")

    def internal(self):
        print("internal func call")
        self.__exit__()

1 个答案:

答案 0 :(得分:0)

@Jeronimo在评论中回答-更改

p = Process(target=(call.Call(),)

p = Process(target=(call.Call))

是提供正确输出的解决方案:

2965 __main__
2966 CALL
internal func call
Leaving Call
Leaving main

为被调用的类提供单独的过程。