What is init in Python? Constructors in Python |

Published: 08 August 2026
on channel: Python_with_Harsh

120

Welcome back to PythonWithHarsh! In this video, we dive deep into one of the most important concepts of Object-Oriented Programming (OOP) in Python: The Constructor (`__init__`).

WHAT YOU WILL LEARN IN THIS VIDEO:

1. What is a Constructor?
A Constructor is a special method in Python that automatically executes whenever a new object is created from a class. It is used to initialize the state or attributes of an object.

2. Understanding the `__init__` Method
In Python, the `__init__` method acts as the constructor. We explain why it starts and ends with double underscores (Dunder method) and how it simplifies object initialization.

3. The Role of `self` Parameter
Learn why `self` is essential in Python classes. It acts as a reference to the current object instance, allowing us to bind variables to specific objects.

4. Types of Constructors
Default Constructor: Created automatically by Python when no explicit constructor is defined.
Parameterized Constructor: Takes custom arguments to initialize objects with specific data.

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