Class is a user defined datatype. Likewise the primitive datatypes like int, float, etc. it is also a datatype but user defined one. So I ask you a question: What does int return?? Think…Absolutely nothing actually we use int to define the objects.
int a;  // this is followed in many languages like C++, java, etc.
And with int’s object we can perform a lot many operation.
In the same way, class is a datatype which without its meaning has no significance, it is just the blueprint on which its objects are made and they acquire behaviour. So class returns nothing. They are just to make objects.
For example, we make a class student. Student is a general name. Now its object will have specific names, ids but almost same functions…that is they study, etc.
I think you have read object oriented concepts in python that’s why its difficult for you to get it. I read it in java and C++ so don’t panic just go slow and feel free to ask again.