MIXINS in Python explained with an example

In this video you see an mix-in example Python. You learn what problems a mixin can solve and how multiple inheritance is used to achieve mixins in Python.

C H A P T E R S
0:09 Single inheritance
0:50 Adding behavior requires inheritance to prevent duplicate code
1:26 Inheritance violates single responsibility principle
2:05 Small addition affects whole system
2:20 Options to implement serialization functionality
2:35 Introduce mixin class
3:30 Use multiple inheritance to achieve mixins in Python
3:48 Difference between mixins and multiple inheritance

M Y O N L I N E T R A I N I N G

#pythonforeveryone #programming #python

[bomthanhha]

I think dependency injection to achieve the same thing without using inheritance. For example, I can assign self.serializer = Serializer() at def __init__(). Am I thinking correctly? When should I decide to use dependency injection vs mixins and vice versa?

[TomasHayes]

I'm struggling with IDE typing errors when a mixin access to properties it doesn't posses (yet).
Any advice on how to handle that properly? Thank you!

[bbbbbsssssfffff]

Can you make video abou SOLID principles?

[akashgeorge]

cant we just write a serializer function (not a method in a class) and use it? why do we need to make it to a class in the first place?