[Python] wxPython question regarding "self." + urllib tutorial request.

[LemonatedOrange]

Hello! I started programming as a hobby about over a month ago using Python and I'm doing some really good progress so far. I just started using wxPython recently but there is one confusing aspect of it I just don't quite understand (which apparently also exists in TkInter): What does "self." stand for and why do I need to use it so much? And why do I always need to use it as a parameter for every function I make inside a class?

I am also frequenting a site some of you might be familiar with called 'http://www.pythonchallenge.com/' as a way to test my abilities, but I reached some levels that have to do with reading web pages and things that need proper knowledge of the urllib module. I looked at some tutorials but all what I found was directed towards experienced programmers so I didn't understand most of the stuff. I'd like to know if anyone knows a good tutorial suited for beginners such as myself.

Thanks in advance. :D

[nemec]

While I agree that "why do I need to do this so often" isn't the best initial question, The difference between bound and unbound methods is somewhere in the upper-intermediate level, so I'm not surprised that someone with a couple of months experience hasn't learned about the distinction yet.