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Keywords

composition vs inheritance composition vs inheritence composition vs inheritance python favor composition over inheritance favor composition python software design software design principles software design design patterns inheritance or composition software design principles solid software design principles loose coupling

Full Transcript

💡 Learn how to design great software in 7 steps: https://arjan.codes/designguide. In this video, I explain the difference between composition vs inheritance, what the design principle "favor composition over inheritance" means in practical terms, and how you can use it to make better software design decisions. The code I worked on in this video is available here: https://github.com/ArjanCodes/2021-composition-vs-inheritance 🎓 ArjanCodes Courses: https://www.arjancodes.com/courses. 💬 Join my Discord server: https://discord.arjan.codes. ⌨️ Keyboard I’m using: https://amzn.to/49YM97v. 🔖 Chapters: 0:00 Intro 1:11 Explanation of the example 3:57 Technique #1: inheritance 8:30 Problems with the inheritance technique 10:02 Technique #2: composition 18:48 Improvement: turn Commission into an abstract class 20:03 Limitations of this example 21:29 Final thoughts #arjancodes #softwaredesign #python