You can do quite a lot without knowing much official computer science theory. What CS theory does is teach you what's been done already and what's possible. That helps you avoid some classic pitfalls and keeps you from wasting time doing things someone else already solved.
great, in that case wouldn't it be easier to simply pick up a book or two or listen to a few open course lectures to get a referential understanding of avoiding classic pitfalls in CS while focusing hardcore on web languages like Python :) and learning "Python the hard way" :)
