Pytest - Creating classes/methods vs modules or functions

[sramasub]

I'm just starting to use pytest for our application testing needs. I would like to know if there's a preferred way of writing tests - either as classes and methods (or) as individual test functions (called as modules, i guess)

What are the pros and cons of it? We don't own or write the code of the application we are testing. We only test its functionality.

[RonnyPfannschmidt]

In pytest Test classes are typically only used for code organization

With fixtures, there's hardly any use for classes these days