Note: Each day this week I'm going to republish one of my most popular posts. My hope is that people who missed them the first time might find them useful now. This post, on "classes" and Object Oriented Programming remains my most popular post of all time. I've gotten hundreds of emails about this post alone. Many have found it an accessible introduction to classes and OOP, both in Python and in general.
The class is a fundamental building block in Python. It is the underpinning for not only many popular programs and libraries, but the Python standard library as well. Understanding what classes are, when to use them, and how they can be useful is essential, and the goal of this article. In the process, we'll explore what the term Object-Oriented Programming means and how it ties together with Python classes.
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