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INTRODUCTION

This book is about a software development technique called object-oriented programming (OOP) and how it can be used with Python. Before OOP, programmers used an approach known as procedural programming, also called structured programming, which involves building a set of functions (procedures) and passing data around through calls to those functions. The OOP paradigm gives programmers an efficient way to combine code and data into cohesive units that are often highly reusable.