Class & Objects in Python | Beginner | Telugu | Naveen V #25
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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.
To create a class, use the keyword "class"
The __init__() Function
The examples above are classes and objects in their simplest form, and are not really useful in real life applications.
To understand the meaning of classes we have to understand the built-in __init__() function.
All classes have a function called __init__(), which is always executed when the class is being initiated.
Use the __init__() function to assign values to object properties, or other operations that are necessary to do when the object is being created.
The self parameter is a reference to the current instance of the class, and is used to access variables that belong to the class.
Object Methods
Objects can also contain methods. Methods in objects are functions that belong to the object.
The pass Statement
class definitions cannot be empty, but if you for some reason have a class definition with no content, put in the pass statement to avoid getting an error.
Inheritance allows us to define a class that inherits all the methods and properties from another class.
Parent class is the class being inherited from, also called base class.
Child class is the class that inherits from another class, also called derived class.
Create a Child Class
To create a class that inherits the functionality from another class, send the parent class as a parameter when creating the child class