Iam building a project in openerp and have found it relatively difficult to get started with it. I have created a very simple module already but now iam trying to expand a bit.

my first question Is. Can I use a regualr class inside in openerp to do something e.g make a call to this class from a view element for example?

next I want to make a GET request. An I want to populate my database with the result. Should I use the http.py for this or can I make my own class to do this work

lastly how would I call a method in a class on Loading / startup of a module? not really to sure how to do this yet.

any help is appreciated. glad i found the developer book last night also