[Twisted-Python] Store simple value in web session

Hi, I would like to store a simple (immutable) value in a web session. Here are the options I see so far: - use the component architecture (seems a bit overkill...) - subclass Session to hold the value I want to store - patch Session to behave like a dictionary (didn't look at the code, not sure if it makes sense...) I'm also curious about the advantages of this component architecture for the session object instead of a simple dictionary? Thanks, Benoit.