Is OOP necessary in python?

Question

IT education

Subject
If yes, in what cases?

I mean creating my own classes

Answer 1

In all cases where this will make the code more readable and concise.
OOP is for people to make it easier to write more complex programs. OOP, when used correctly, allows you to isolate complexity in separate classes so that this complexity does not accumulate in one tangled tangle in one place.
Read about the principles of SOLID.