Python: Essential Reference, Third Edition

Chapter 3. Types and Objects

ALL THE DATA STORED IN A PYTHON program is built around the concept of an object. Objects include fundamental data types such as numbers, strings, lists, and dictionaries. It’s also possible to create user-defined objects in the form of classes or extension types. This chapter describes the Python object model and provides an overview of the built-in data types. Chapter 4, “Operators and Expressions,” further describes operators and expressions.