What is the difference between a class and a module?

Question

I'm either making a class or a module called D.U.C.K (guess what game it's from) and I can't decide which I should do or if they are the same.

Answer 1

Modules can be imported I'm guessing.

Answer 2

Ok, I have the answer now, so now you have to guess what game the D.U.C.K is from!