Nux's recv function

    def recv(self):
        # receive one character at time until "\n"
        data = ""
        while 1:
            character = self.connection.recv(1)
            if character:
                # only receive one line at time
                if character == '\n':
                    break
                if character != '\r':
                    data += character
            else:
                print 'Connection closed'
                quit()

        self.display_and_log(' -> '+data)
        self.line = data