多处理管理器和自定义类 [英] Multiprocessing managers and custom classes
本文介绍了多处理管理器和自定义类的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我不知道为什么,但是每当我尝试传递给共享对象共享自定义类对象的方法时,都会收到这个奇怪的错误. Python版本:3.6.3
I do not know why, but I get this strange error whenever I try to pass to the method of a shared object shared custom class object. Python version: 3.6.3
代码:
from multiprocessing.managers import SyncManager
class MyManager(SyncManager): pass
class MyClass: pass
class Wrapper:
def set(self, ent):
self.ent = ent
MyManager.register('MyClass', MyClass)
MyManager.register('Wrapper', Wrapper)
if __name__ == '__main__':
manager = MyManager()
manager.start()
try:
obj = manager.MyClass()
lst = manager.list([1,2,3])
collection = manager.Wrapper()
collection.set(lst) # executed fine
collection.set(obj) # raises error
except Exception as e:
raise
错误:
---------------------------------------------------------------------------
Traceback (most recent call last):
File "D:\Program Files\Python363\lib\multiprocessing\managers.py", line 228, in serve_client
request = recv()
File "D:\Program Files\Python363\lib\multiprocessing\connection.py", line 251, in recv
return _ForkingPickler.loads(buf.getbuffer())
File "D:\Program Files\Python363\lib\multiprocessing\managers.py", line 881, in RebuildProxy
return func(token, serializer, incref=incref, **kwds)
TypeError: AutoProxy() got an unexpected keyword argument 'manager_owned'
---------------------------------------------------------------------------
这是什么问题?
推荐答案
在此处找到了临时解决方案. 我设法通过在 multiprocessing \ managers.py 中的AutoProxy的初始化程序中添加所需的关键字来解决此问题,但是,我不知道此kwarg是否负责任何事情.
Found temporary solution here. I've managed to fix it by adding needed keyword to initializer of AutoProxy in multiprocessing\managers.py Though, I don't know if this kwarg is responsible for anything.
这篇关于多处理管理器和自定义类的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文