Python3-导入和重写方法

在

server.py

中，我有两个类，class

server

和

ClientThread

方法

processCmd

。我想在将此代码导入到新代理类时重写此方法。 怎么做

这是server.py：

class ClientThread( threading.Thread, socket.socket ):
    #(some code)
    def processCmd( self, cmd ):
        if 'quit' == cmd:
            self.writeline(str('Ok, bye'))
            QUIT = True
            done = True
        elif 'bye' == str(cmd):
            self.writeline(str('Ok, bye'))
            done = True
        else:
            print(cmd)
#
class Server:
    #(some code)
    def run( self ):
       self.sock = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
       self.sock.bind( ( '127.0.0.1', 5050 ) )
       new_thread = ClientThread( client )
       print('Incoming Connection. Started thread ', end=' ')
       self.thread_list.append( new_thread )
       new_thread.start()

在另一个文件中是主代码：

import server
#
class Proxy( server.Server):
    def processCmd( self, cmd ):
        if 'quit' == cmd:
            self.writeline(str('Another quit'))
            QUIT = True
            done = True
        elif 'bye' == str(cmd):
            self.writeline(str('Another bye'))
            done = True
        else:
            print(cmd)
    pass

---

您不能覆盖

服务器

类中的

processCmd

方法。您还必须导入

ClientThread

，并将其子类化

import server

class Proxy( server.Server):
    def run( self ):
       self.sock = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
       self.sock.bind( ( '127.0.0.1', 5050 ) )
       new_thread = CustomClientThread( client )
       print('Incoming Connection. Started thread ', end=' ')
       self.thread_list.append( new_thread )
       new_thread.start()
    pass

class CustomClientThread(server.ClientThread)
    def processCmd( self, cmd ):
        #override here

---

如果你不想覆盖整个

run

方法，你应该在基类中修改它，这样clientThread的类型就可以设置在方法的一侧

class Server:
    thread = ClientThread

    #(some code)
    def run( self ):
       self.sock = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
       self.sock.bind( ( '127.0.0.1', 5050 ) )
       new_thread = thread( client )
       print('Incoming Connection. Started thread ', end=' ')
       self.thread_list.append( new_thread )
       new_thread.start()

然后子类看起来就像这样，

run

方法保持不变

class Proxy( server.Server):
    thread = CustomClientThread

---

如果您想从

ClientThread

重写方法，则可以按如下方式重写

class OverrideClientThread(server.ClientThread):
    def processCmd(self, cmd):
        # call super
        server.ClientThread.processCmd(self, cmd)
        #do something.

---

我在类

Server

中看不到

processCmd

方法。感谢您的回复，我已将：new\u thread=ClientThread（client）更改为thread=ClientThread和new\u thread=thread（client），但我在启动旧ClientThread进程时遇到问题