Скачать или смотреть Python Fullstack Development-Build a E-Commerce Website with Flask - Models - Python in Tamil

Flask is a lightweight WSGI web application framework. It is designed to make getting started quick and easy, with the ability to scale up to complex applications.

A model is a class that represents a table or collection in our DB, and where every attribute of the class is a field of the table or collection.

Object-Relational Mapping (ORM) is a technique that lets you query and manipulates data from a database using an object-oriented paradigm. An ORM library is a completely ordinary library written in your language of choice that encapsulates the code needed to manipulate the data, so you don’t use SQL anymore, you interact directly with an object in the same language you’re using.

Flask-SQLAlchemy is an extension for Flask that adds support for SQLAlchemy to your application.
Flask uses Flask-SQLAlchemy for using the ORM Power.