Write Better Python Code

https://www.youtube.com/playlist?list=PLC0nd42SBTaNuP4iB4L6SJlMaHE71FG6N

A. SOLID Principles

1. Single Responsibility Make things (classes, functions, etc.) responsible for fulfilling one type of role. e.g. Refactor code responsibilities into separate classes.

2. Open/Closed Be able to add new functionality to existing code easily without modifying existing code. e.g. Use abstract classes. These can define what subclasses will require and strengthen Principle 1. by separating code duties.

3. Liskov Substitution When a class inherits from another class, the program shouldn't break and you shouldn't need to hack anything to use the subclass. e.g. Define constructor arguments to keep inheritance flexible.

4. Interface Segregation Make interfaces (parent abstract classes) more specific, rather than generic. e.g. Create more interfaces (classes) if needed and/or provide objects to constructors. Tip: Use composition rather than Inheritance as is saves on Long list of multiple Inheritance.

5. Dependency Inversion Make classes depend on abstract classes rather than non-abstract classes. e.g. Make classes inherit from abstract classes.

B. The Ultimate Guide to Writing Functions.

Video link: https://youtu.be/yatgY4NpZXE.