AAARG Python Programming?

k so... I'm trying to program in python.. but wtf do i do? i read some books, and i know how to do shit like... print hello world, define a variable, and math and shit... but how do i write a program?

wtf r modules do?

ideas on how to start coding?

k me again.. I'm just wondering how im supposed to do anything with simple shit.  how can i make an internet relay chatroom if i only know basic user input and output?