This third edition of Python 3 Object-Oriented Programming fully explains classes, data encapsulation, and exceptions for developing well-designed software. Temporarily free to download!

It covers working with files, lambdas or 'anonymous functions', and object-oriented programming, and each tutorial is followed by a short demo video.

What does object-oriented programming actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Here's what you need to know about object-oriented programming with classes, methods, objects, and interfaces, with examples in Java, Python, and TypeScript.