This is pure Python of today. Sorry about the tutorial, but it is meant to illustrate the second part, which is the one we're interested in and which will follow the same development scenario. A class is meant to define the common properties of a set of objects. A is of type . Note, that 'a' and 'b' are different objects.
Instance objects have one more special property, indicating the class they are an instance of.
Thus, we can compose property packages and create new ones. Classes define one special property, indicating whether a class inherits the properties of another class. It has one superclass. This was the hard part. Now, let's continue with the easy one.