The idea is that inheritance is a way to express an "is a" relationship; in the above, Circle is an Ellipse, which is a Shape, thus, transitively, Circle is also a Shape. Implicitly, Shape is an ...
This is a difficult subject often briefly covered by having classes share some variables. These resources will help students understand the advantages of using classes with lots of practical ...
In the code above, Example and Example2 behave exactly the same way. The no-argument super() effectively fills in the class and self. If we take a slightly more ...