Python OOP 2: Instance Variable & Method, Class Variable & Method

A class variables/attributes is the variable defined under a class, which is available for both class as well as instance.

The @classmethod decorator, is a built-in function decorator that is an expression that gets evaluated after your function is defined. The result of that evaluation shadows your function definition.
A class method receives the class as first argument, just like an instance method receives the instance.

You could find this tutorial’s code in the following links: