Gain insights into writing cleaner, modular, and scalable Python code through Object-Oriented Programming. Dive into inheritance, polymorphism, and more with coding challenges and illustrations.

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Learn to write cleaner, more modular, and more scaleable code in Python by gaining a master of Object Oriented Programming (OOP). 

You'll start with the basics of object oriented programming and build up to more advanced concepts such as inheritance, information hiding, and polymorphism. Along the way you'll learn how each concept applies to Python in particular, as well as how various Python features make it particularly convenient for OOP.

This course is filled with hands-on coding challenges, playgrounds, snippets, and illustrations to keep things interactive.

Learn Object-Oriented Programming in Python

# Introduction

In OOP, objects and classes are the fundamental entities.  Objects are created using classes. One can observe that classes contain properties and that objects are created to manipulate and access these properties. To make this object-oriented system more reliable and error free, it is a good practice to limit access to the class members at times.

> **Information hiding** refers to the concept of **hiding the inner workings of a class** and simply providing an **interface** through which the outside world can interact with the class without knowing what's going on inside.

The purpose is to implement classes in such a way that the instances (objects) of these classes should not be able to cause any unauthorized access or change in the original contents of a class. One class does not need to know anything about the underlying algorithms of another class. However, the two can still communicate.

# A real life example

Let's apply this to a real-world scenario. Take the doctor-patient model. In the case of an illness, the patient consults the doctor, after which he or she is prescribed an appropriate medicine.

The patient only knows the process of going to the doctor. The logic and reasoning behind the doctor's prescription are unknown to the patient. A patient will not understand the medical details the doctor uses to reach his/her decision on the treatment.

This is a classic example of the patient class interacting with the doctor class without knowing the inner workings of the doctor class.


Get familiar with a very important aspect of Object-Oriented Programming called data hiding.

Introduction to Object-Oriented Programming

Classes and Objects

Information Hiding

Exam 1

Inheritance

Polymorphism

Object Relationships

Exam 2

What is Information Hiding?

Introduction