2) Ubuntu moves to Python 3.
While like any Linux, you can write any program you like in any language that strikes your fancy, Ubuntu recommends “using Python. Many important parts of Ubuntu are already written directly in Python, and we work to make every important API and framework within Ubuntu available from Python.”
In this upcoming version, Kate Stewart, the Ubuntu Release Manager , announced, that “The Ubuntu desktop has begun migrating from Python 2 to Python 3. Most Python applications included in the desktop is now using Python 3, and most Python modules that are included by default are available for both Python 2 and Python 3.” In other words, if you want to develop for Ubuntu’s, especially for its Unity and Head Up Display (HUD), you should be doing it in Python.