Eu tenho simplesUDPServer, que trabalha commultiprocessamento.

Quero criar uma lista que contenha informações sobre todos os clientes.

eu usoGerente, mas não entendo, como acrescentar informações na lista - preciso manipular o objeto do Manager para gerenciar, mas como? Meu caminho com o novo atributo não funciona.

import multiprocessing
from socketserver import UDPServer, ForkingMixIn, DatagramRequestHandler
from socket import socket, AF_INET, SOCK_DGRAM
from settings import host, port, number_of_connections

class ChatHandler(DatagramRequestHandler):

    def handle(self):
        cur_process = multiprocessing.current_process()
        data = self.request[0].strip()
        socket = self.request[1]
        ChatHandler.clients.append(self.client_address) # error here
        print(ChatHandler.clients)


class ChatServer(ForkingMixIn, UDPServer):
    pass


if __name__ == '__main__':
    server = ChatServer((host, port), ChatHandler)
    ChatHandler.clients = multiprocessing.Manager().list()
    server_process = multiprocessing.Process(target=server.serve_forever)
    server_process.daemon = False
    server_process.start()

Como consertar isso? Obrigado!

Resultado:

Exception happened during processing of request from ('127.0.0.1', 55679)
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/multiprocessing/managers.py", line 724, in _callmethod
    conn = self._tls.connection
AttributeError: 'ForkAwareLocal' object has no attribute 'connection'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/socketserver.py", line 584, in process_request
    self.finish_request(request, client_address)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/socketserver.py", line 344, in finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/socketserver.py", line 665, in __init__
    self.handle()
  File "server.py", line 15, in handle
    ChatHandler.clients.append(self.client_address)
  File "<string>", line 2, in append
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/multiprocessing/managers.py", line 728, in _callmethod
    self._connect()
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/multiprocessing/managers.py", line 715, in _connect
    conn = self._Client(self._token.address, authkey=self._authkey)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/multiprocessing/connection.py", line 495, in Client
    c = SocketClient(address)
  File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/multiprocessing/connection.py", line 624, in SocketClient
    s.connect(address)
FileNotFoundError: [Errno 2] No such file or directory