Pi Droid Alpha Python API is 99% compatible with the RoboPi Python API
Some of the API may seem a bit familiar to you:
pinMode(), digitalRead(), digitalWrite(), analogRead(), analogWrite(), servoRead() and servoWrite()
along with some less familiar additions like readMode(), readDistance() and more.
readDistance() is not implemented on Pi Droid Alpha yet… however I am working on it.
This means you can run the same Python robot using either Pi Droid Alpha or RoboPi
http://www.mikronauts.com/raspberry-pi/pi-droid-alpha/
(within the limits of the controllers)