Module 10

Objects and classes

class, self, methods, operators

When you finish this module you can say:

I can write my own classes and teach them operators.

By the end of this module you'll be able to write a number class that can be added, multiplied, and prints itself readably. In Module 15 we'll add the ability to learn to this very same class.

Lessons

8 lessons · ≈ 77 min

1. Why a class?9 min
2. class, __init__, and self10 min
3. Methods9 min
4. __repr__: printing an object readably8 min
5. Inheritance and super()10 min
6. Teaching operators to your own class10 min
7. len, indexing, and looping9 min
8. Project: the Value class12 min · project

Practice exercises

Short writing exercises, independent of the lessons: Go to the exercises

1. A depot class
2. How a tag looks
3. Employee and manager
4. A callable threshold
5. A countdown object