Question

当我使用 twisted 创建TCP服务器时遇到TypeError。当我在启动 server.py 后运行 client.py 时，我会在错误追溯部分收到以下错误。

我不知道这个错误。但是，我确信错误发生在server.py。

server.py：

from twisted.internet import protocol, reactor
    from time import ctime

    PORT = 1234
    class TserverProtocols(protocol.Protocol):
        def connectionMade(self):
            clnt = self.clnt = self.transport.getPeer().host
            print('...connected from:', clnt)
        def dataReceived(self, data):
            self.transport.write(('[%s] %s' %(ctime(),data)).encode())

    factory = protocol.Factory()
    factory.protocols = TserverProtocols
    print('waiting for connetion...')
    reactor.listenTCP(PORT, factory)
    reactor.run()

client.py：

from twisted.internet import protocol, reactor

HOST = 'localhost'
PORT = 1234

class TSClntProtocol(protocol.Protocol):
    def sendData(self):
        data = input('>')
        if data:
            print('...sending %s' % data)
            self.transport.write(data.encode())
        else:
            self.transport.loseConnetion()

    def connectionMade(self):
        self.sendData()

    def dataReceived(self, data):
        print(data)
        self.sendData()

class TSCFactorty(protocol.ClientFactory):
    protocol = TSClntProtocol
    clientConnetionLost = clientConnectionFailed = lambda slef, connector, reason:reactor.stop()

reactor.connectTCP(HOST, PORT, TSCFactorty())
reactor.run()

错误追溯：

Unhandled Error
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/twisted/python/log.py", line 86, in callWithContext
    return context.call({ILogContext: newCtx}, func, *args, **kw)
  File "/usr/local/lib/python3.5/dist-packages/twisted/python/context.py", line 122, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/usr/local/lib/python3.5/dist-packages/twisted/python/context.py", line 85, in callWithContext
    return func(*args,**kw)
  File "/usr/local/lib/python3.5/dist-packages/twisted/internet/posixbase.py", line 597, in _doReadOrWrite
    why = selectable.doRead()
--- <exception caught here> ---
  File "/usr/local/lib/python3.5/dist-packages/twisted/internet/tcp.py", line 1069, in doRead
    protocol = self.factory.buildProtocol(self._buildAddr(addr))
  File "/usr/local/lib/python3.5/dist-packages/twisted/internet/protocol.py", line 133, in buildProtocol
    p = self.protocol()
builtins.TypeError: 'NoneType' object is not callable

Answer 1

您的代码中有几个拼写错误。关于你的问题，你应该在server.py

中替换

factory.protocols = TserverProtocols

与

factory.protocol = TserverProtocols

builtins.TypeError：＆＃39; NoneType＆＃39;对象在Twisted中不可调用

1 个答案: