[PyQt] qttcp

[lucaberto at libero.it]

Hello i try to use this but i have a problem, i never see the server reply:
def identify(self):
        SIZEOF_UINT16 = 2
        self.socket = QtNetwork.QTcpSocket()
        il_mio_nick = QtCore.QString('NICK mynick\n')
        invio_identificazione =  QtCore.QString('/msg nickserv identify my_password')
        self.request = QtCore.QByteArray()
        stream =QtCore.QDataStream(self.request,  QtCore.QIODevice.WriteOnly)
        stream.setVersion(QtCore.QDataStream.Qt_4_4)
        stream.writeUInt16(0)
        stream << il_mio_nick << invio_identificazione
        stream.device().seek(0)
        stream.writeUInt16(self.request.size()- SIZEOF_UINT16)
        if self.socket.isOpen():
            self.socket.close()
        self.label.setText('Mi sto connettendo')
        self.socket.connectToHost('irc.eden-irc.net', 6667)
        if self.socket.waitForConnected (1000):
            self.label.setText('connesso')
            self.nextBlockSize = 0
            self.socket.write(self.request)
            self.request = None
            self.leggo_risposta()
        else :
            errore = self.socket.SocketError()
            self.label.setText(QtCore.QString("Errore: %1").arg(self.socket.errorString()))
            self.socket.close()
    
    def leggo_risposta(self):
        stream = QtCore.QDataStream(self.socket)
        stream.setVersion(QtCore.QDataStream.Qt_4_4)
        SIZEOF_UINT16 = 2
        while True:
            if self.nextBlockSize == 0:
                if self.socket.bytesAvailable() < SIZEOF_UINT16:
                    break
            self.nextBlockSize = stream.readUInt16()
            if self.socket.bytesAvailable() < self.nextBlockSize :
                break
            risposta =QtCore.QString 
            stream >> risposta
            self.textEdit.setText(risposta)
            self.nextBlockSize = 0

I use wireshark to log the network traffic and i see the the connection is ok i log also the reply from the server but i i'm not able to put it in the textEdit.
Debugging the project i never see reply from the server why the socket never read the reply?

Thanks 
Luca