I think it is very well written and a good first read for beginners or programmers new to object oriented programming.
Here is an expert from the article
This article will give an overview of the basic object-oriented concepts in Python. We’ll start by defining an object and learning what it is. Next, we’ll take a look at how you can discover the properties of Python's built-in objects and how you can create your own. Then we’ll finish off with a list of best practices and a pointer to where you can go to get more information.If you are new to object oriented programming or just starting out with python here is the link
An Introduction to Python Objects
Enjoy...