Case study on Python | Python programming | SNS Institutions

Описание: Python Constructor, Destructor, and List

Hello everyone! In this video, we are going to learn three important concepts in Python: Constructor, Destructor, and List. These concepts are very important for understanding Object-Oriented Programming in Python.

First, let us understand Constructor.

A constructor is a special method in Python that is automatically called when an object of a class is created. The constructor is mainly used to initialize values to the data members of a class. In Python, the constructor method is written as __init__(). For example, when we create a student object, the constructor assigns values like name or roll number to that object. This helps in preparing the object for use.

Next, let us see Destructor.

A destructor is also a special method in Python. It is called automatically when an object is destroyed or deleted from memory. The destructor method is written as __del__(). It is mainly used to release resources such as memory, files, or database connections. When the program ends or the object is deleted, the destructor performs clean-up operations.

Now, let us learn about List in Python.

A list is a built-in data structure used to store multiple values in a single variable. Lists are written using square brackets. Python lists are ordered, mutable, and allow duplicate values. This means we can change the list elements after creation. Lists are commonly used to store data like marks, names, or numbers.

In conclusion, constructors help initialize objects, destructors help clean up resources, and lists help store multiple values efficiently. These concepts are essential for writing structured and effective Python programs.
Thank you for watching! 😊📘

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