Bluno send data to python

I have a Bluno beetle and followed the BasicDeme-Example, but I want to receive the Data send on my RaspberryPi using Python. I already got the Pi to connect to the beetle but don't know bluetooth so I have no idea which characteristic to write and read to get the data. 

```

void setup() {
 Serial.begin(115200);  //initial the Serial
}
void loop() {
 if (Serial.available())  {
 
   Serial.write("Hello,World!");
  
 }
}

```