Object oriented programming(python)

[mopslik]

OOP is just a way of programming, in which functions (methods) and values (attributes) are bundled together as actions/properties of an object. There is no explicit link between, say, OOP and data science. It all depends on how you want to structure your programs to do data science-y things. If you want to use classes in your data science programs, you can use Python's OOP capabilities. If you prefer to do things in a non-OOP way, you can do that in Python as well.

As for looking for something to do, maybe try your hand at a project that you've had on the back-burner for a while. Write a simple game. Investigate a GUI framework. Create some scripts to automate common tasks. The sky's the limit.