I've had Python code reviewed in the past by senior devs from more of a Java/C# background, who encouraged me to read the GoF and rewrite classes using the abc

I've had Python code reviewed in the past by senior devs from more of a Java/C# background, who encouraged me to read the GoF and rewrite classes using the abc (abstract base class) library, staticmethod/classmethod decorators, etc. I never quite understood the value of it in Python. But the fact that those are included in the stdlib makes me think that they must have some clear use cases.