Learning python basics

Hello Everybody:

I am new to python, but am familiar with the basic of programming languages. I am following some tutorials online. I am not sure if the tutorials are for an older version, because most of the stuff doesn't work for me. for example, using variables:

Code:

#!/usr/bin/python cars = 100 print cars

when I run this, it says invalid syntax.
i am running IDLE 3.3.0 and python version 3.3.0.