Python is a server-side language meant to connect to a database and get, edit, and delete data. If you're looking to make a game, I suggest you start with an Object Oriented Programming language. (OOP)
An HTML game is a game made solely with HTML or other coding. It is basically a game with words and pictures, not like a Flash game where it's really just one big image.. thing. Sorry. My advice really stinks at the moment.
