Define Python Class

Table of Contents

Define Python Class

Let’s learn how to define a Python class in this tutorial. A class is a basic entity of an object-oriented programming language. It is a blueprint for creating objects. Classes encapsulate data and methods that operate on that data.

Define Python Class

A Python class can be defined by using the keyword ‘class‘.

Syntax

The general syntax for defining a class is as follows:

class PythonClassName:

‘optional class documentation string’

class definition

The class is defined by using the keyword class with the PythonClassName followed by a colon. An optional class documentation string can follow the class statement. This provides short information about the class being created. The class definition can have:

class attributes
constructor method
instance attributes
methods

Class members	Description
Class Attributes	These are variables that are shared by all instances of the class. They are defined directly inside the class.
Constructor Method	The __init__ method is a special method that Python calls when a new instance of the class is created. It is used for initializing the instance’s attributes.
Instance Attributes	These are attributes specific to each instance of the class, usually defined within the __init__ method.
Methods	These are functions that are defined inside a class and can perform operations using the class or instance attributes.