PB中的Python Twisted，服務器客戶端功能調用

Question

你能幫忙嗎？...我真的很掙扎。 我無法通過下面的程序從客戶端調用服務器中的這兩個功能。幫助我了解如何從客戶端調用服務器中的多個功能。

Server.py

#!/usr/bin/env python
from twisted.spread import pb
from twisted.internet import reactor

class Main(pb.Root):
    def remote_name(self,idno):
            print'Id NO:', idno
            def num(idno):
                    switcher={
                            1:'\t\tFirst',
                            2:'\t\tSecond',
                            3:'\t\tThird',
                            } 
                    return switcher.get(idno, 'Invalid Number')
            print num(idno)
    def remote_hello(self, st):
            print'From Client:', st
            return st    
if __name__=='__main__':
      reactor.listenTCP(5000,pb.PBServerFactory(Main()))
      reactor.run()

客戶端

#!/usr/bin/env python

from twisted.spread import pb
from twisted.internet import reactor

 def main():
      f = pb.PBClientFactory()
      reactor.connectTCP('localhost',5000,f)
      d=f.getRootObject()
      print 'Enter ID No:'
      no=input()
      d.addCallback(lambda new:new.callRemote('name',no))
      d.addCallback(lambda obj:obj.callRemote('hello', 'hello world'))
      reactor.run()

if __name__=='__main__':
      main()

如果我嘗試執行此操作，則只執行remote_name函數。remote_hello函數沒有響應。這是我的問題。

Answer 1

  d = f.getRootObject()
  def gotObject(new):
      no = input()
      d2 = new.callRemote('name',no)
      d2.addCallback(lambda ignored: new.callRemote('hello', 'hello world'))
      return d2
  d.addCallback(gotObject)
  reactor.run()

要么

from twisted.internet.defer import inlineCallbacks

@inlineCallbacks
def doIt():
    f = pb.PBClientFactory()
    reactor.connectTCP('localhost',5000,f)
    new = yield f.getRootObject()
    print 'Enter ID No:'
    no = input()
    yield new.callRemote('name',no)
    yield new.callRemote('hello', 'hello world')

def main():
    d = doIt()
    reactor.run()