You explored inheritance and composition in Python. You learned about the type of relationships that inheritance and composition create. You also went through a series of exercises to understand how inheritance and composition are implemented in Python.
In this course, you learned how to:
- Use inheritance to express an is a relationship between two classes
- Evaluate if inheritance is the right relationship
- Use multiple inheritance in Python and evaluate Python’s MRO to troubleshoot multiple inheritance problems
- Extend classes with mixins and reuse their implementation
- Use composition to express a has a relationship between two classes
- Provide flexible designs using composition
- Reuse existing code through policy design based on composition
Here are some books and articles that further explore object oriented design and can be useful to help you understand the correct use of inheritance and composition in Python or other languages:
- Design Patterns: Elements of Reusable Object-Oriented Software
- Head First Design Patterns: A Brain-Friendly Guide
- Clean Code: A Handbook of Agile Software Craftsmanship
- SOLID Principles
- Liskov Substitution Principle
Congratulations, you made it to the end of the course! What’s your #1 takeaway or favorite thing you learned? How are you going to put your newfound skills to use? Leave a comment in the discussion section and let us know.