what's the general way of separating classes?

[John Salerno]

 From my brief experience with C#, I learned that it was pretty standard 
practice to put each class in a separate file. I assume this is a 
benefit of a compiled language that the files can then be grouped together.

What I'm wondering is how is this normally handled in Python? Is it 
normal for classes to be put in separate modules? It seems like this can 
get out of hand, since modules are separate from one another and not 
compiled together. You'd end up with a lot of import statements.

Are related classes put into a single module then? Or is there some 
recommended method for how to handle this?

Thanks.