class My_Socket(socket.socket):

    def __init__(self, encoding='utf-8'):

        self.encoding = encoding

        super(My_Socket, self).__init__(type=socket.SOCK_DGRAM)

    def mysendto(self, msg, addr):

        return self.sendto(msg.encode(self.encoding), addr)

    def myrecvfrom(self, num):

        data, addr = self.recvfrom(num)

        return data.decode(self.encoding), addr

import my_UDP

sk = my_UDP.My_Socket()

while 1:

    msg = input('>>>')

    sk.mysendto(msg,('127.0.0.1', 8080))

    data, addr = sk.myrecvfrom(1024)

    print(data)

client端

import my_UDP

sk = my_UDP.My_Socket()

sk.bind(('127.0.0.1', 8080))

while 1:

    data, addr = sk.myrecvfrom(1024)

    print(data)

    msg = input('>>>')

    sk.mysendto(msg, addr)

server端