Python Classes and Objects | Classes and Objects in python |Python tutorial | #11

Python Classes
Python is an object oriented programming language.
Almost everything in Python is an object, with its properties and methods.
A Class is like an object constructor, or a "blueprint" for creating objects.
Create a Class
To create a class, use the keyword class

#Python #Classes #Objects #tutorial

Python Objects and Classes
In this tutorial, you will learn about the core functionality of Python objects and classes. You'll learn what a class is, how to create it and use it in your program.

Python Objects and Classes
Python is an object-oriented programming language. Unlike procedure-oriented programming, where the main emphasis is on functions, object-oriented programming stresses on objects.

An object is simply a collection of data (variables) and methods (functions) that act on those data. Similarly, a class is a blueprint for that object.
We can think of a class as a sketch (prototype) of a house. It contains all the details about the floors, doors, windows, etc. Based on these descriptions we build the house. House is the object.
As many houses can be made from a house's blueprint, we can create many objects from a class. An object is also called an instance of a class and the process of creating this object is called instantiation.
Defining a Class in Python
Like function definitions begin with the def keyword in Python, class definitions begin with a class keyword.
The first string inside the class is called docstring and has a brief description of the class. Although not mandatory, this is highly recommended.
Here is a simple class definition.

Python Classes and Objects
A class is a user-defined blueprint or prototype from which objects are created. Classes provide a means of bundling data and functionality together. Creating a new class creates a new type of object, allowing new instances of that type to be made. Each class instance can have attributes attached to it for maintaining its state. Class instances can also have methods (defined by their class) for modifying their state.

To understand the need for creating a class let’s consider an example, let’s say you wanted to track the number of dogs that may have different attributes like breed, age. If a list is used, the first element could be the dog’s breed while the second element could represent its age. Let’s suppose there are 100 different dogs, then how would you know which element is supposed to be which? What if you wanted to add other properties to these dogs? This lacks organization and it’s the exact need for classes.
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Python Tutorial | Python Classes and Objects | Classes and Objects in python
Python Tutorial | Python Classes and Objects | Classes and Objects in python
Python Tutorial | Python Classes and Objects | Classes and Objects in python

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