Open sockets to the server and start threads

def start(self):
        """Open sockets to the server and start threads"""
        if not self.writeThread.isAlive() and not self.readThread.isAlive():
            self.client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            self.client.connect(self.ADDR)
            self.running = True
            self.writeThread.start()
            self.readThread.start()