Python 3 Object Oriented Programming

A Python programmer often starts by storing data in a few variables. As our program expands, we will later find that we are passing the same set of related variables to different functions. This is the time to think about grouping both variables and functions into a class.

Aggregation is almost exactly like composition. The difference is that aggregate objects can exist independently.

of a board and thirty-two pieces. The board is further comprised of sixty-four positions.

This is an object diagram, also called an instance diagram

composition and inheritance.

When analyzing a system, objects typically represent nouns in the original problem, while methods are normally verbs

abstraction is the process of encapsulating information with separate public and private interfaces.

abstraction means dealing with the level of detail that is most appropriate to a given task. It is the process of extracting a public interface from the inner details

This process of hiding the implementation, or functional details, of an object is suitably called information hiding. It is also sometimes referred to as encapsulation, but encapsulation is actually a more all-encompassing term

Our interface to the television is the remote control.