Twisted

Question

Kullanarak dosyaya yazılamıyor Bir istemci ile bağlantı kurmak için kullandığım bu kod parçacığım var ve tüm metni bir dosyaya yazıyor. İşte kod

from twisted.internet.protocol import Protocol, Factory 
    from twisted.internet import reactor 
    import ctypes # An included library with Python install. 
    class DataTransfer(Protocol): 
     def connectionMade(self): 
       #self.transport.write("""connected""") 
       fwrite = open('/Applications/mamp/htdocs/datatest.txt','r+') 
       self.factory.clients.append(self) 
       print "clients are ", self.factory.clients 
       self.username = "" 
       self.password = "" 
       self.auth = False 
       self.ipaddress = self.transport.getPeer() 
       print self.ipaddress 

     def connectionLost(self, reason): 
      fwrite.close() 
      self.factory.clients.remove(self) 
      print reason 

     def dataReceived(self, data): 
      print data 
      fwrite.write(data) 
      a = data.split(':') 
      if len(a) > 1: 
         command = a[0] 
         content = a[1] 

         msg = "" 

         self.message(msg) 

     def message(self, message): 
       self.transport.write(message + '\n') 

    factory = Factory() 
    factory.protocol = DataTransfer 
    factory.clients = [] 

    reactor.listenTCP(8889, factory) 
    print "Server started" 
    reactor.run() 

ben bu komutu pythonw socketListner.py yürütme am olduğunu. Sunucu başarıyla başlatılıyor. Ama netcat komutunu kullanarak bağlandığımda, terminalimde aşağıdakileri alıyorum ve bağlantı kapanıyor. fwrite değişken connectionMade yerel olarak tanımlanır Sizin

Unhandled Error 
    Traceback (most recent call last): 
     File "socketListner.py", line 42, in <module> 
     reactor.run() 
     File "/Library/Python/2.7/site-packages/twisted/internet/base.py", line 1194, in run 
     self.mainLoop() 
     File "/Library/Python/2.7/site-packages/twisted/internet/base.py", line 1206, in mainLoop 
     self.doIteration(t) 
     File "/Library/Python/2.7/site-packages/twisted/internet/selectreactor.py", line 143, in doSelect 
     _logrun(selectable, _drdw, selectable, method) 
    --- <exception caught here> --- 
     File "/Library/Python/2.7/site-packages/twisted/python/log.py", line 101, in callWithLogger 
     return callWithContext({"system": lp}, func, *args, **kw) 
     File "/Library/Python/2.7/site-packages/twisted/python/log.py", line 84, in callWithContext 
     return context.call({ILogContext: newCtx}, func, *args, **kw) 
     File "/Library/Python/2.7/site-packages/twisted/python/context.py", line 118, in callWithContext 
     return self.currentContext().callWithContext(ctx, func, *args, **kw) 
     File "/Library/Python/2.7/site-packages/twisted/python/context.py", line 81, in callWithContext 
     return func(*args,**kw) 
     File "/Library/Python/2.7/site-packages/twisted/internet/selectreactor.py", line 154, in _doReadOrWrite 
     self._disconnectSelectable(selectable, why, method=="doRead") 
     File "/Library/Python/2.7/site-packages/twisted/internet/posixbase.py", line 258, in _disconnectSelectable 
     selectable.connectionLost(failure.Failure(why)) 
     File "/Library/Python/2.7/site-packages/twisted/internet/tcp.py", line 293, in connectionLost 
     protocol.connectionLost(reason) 
     File "socketListner.py", line 17, in connectionLost 
     fwrite.close() 
    exceptions.NameError: global name 'fwrite' is not defined 

Answer 1

. Bunu, sınıfınızda kullandığınız her yerde self.fwrite olarak tanımlayarak bir örnek değişken oluşturmaya çalışın.