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  Python  Project Online Quiz System The Online Quiz System is a simple Python project that allows users to answer multiple-choice questions through the command line. The program checks each answer automatically, calculates the score, finds the percentage, assigns a grade, and displays the final result. It also gives the user the option to play the quiz again without restarting the program. This project is useful for beginners because it combines many basic Python concepts into one practical application.   Project Features 1. User Login (Name Input) The program first asks the user to enter their name. This name is displayed in the final result to make the quiz more personal. what is Python program 2. Multiple Choice Questions The quiz contains several questions, and each question has four options (A, B, C, and D). The user selects the correct answer by typing the option letter. 3. Automatic Answer Checking After the user enters an answer, Python compares it with t...

  Python Database Tutorial  2026 Introduction Almost every modern application stores information in a database. Whether you use WhatsApp, Instagram, Facebook, Amazon, Flipkart, Banking Apps, or Hospital Management Systems, all of them save data inside databases. Python provides powerful libraries that allow developers to connect to databases, store information, update records, retrieve data, and delete unnecessary information. Python also allows developers to analyze database information using charts such as Histograms. Table of Contents What is a Database? Why Do We Need a Database? Types of Databases What is SQLite? Features of SQLite SQLite Architecture SQLite in Python What is MySQL? Python MySQL Connection CRUD Operations SQL Queries in Python What is Histogram? Python Histogram Example Best Practices Interview Questions FAQs What is a Database? A Database is an organized collection of data stored electronically so that it can be...

What are Python Libraries? Python libraries are collections of pre-written code that help developers perform common tasks without writing everything from scratch. A library contains modules, functions, classes, and tools designed for specific purposes.   Why Do We Use Python Libraries? Python libraries help developers: Save development time Reduce coding effort Improve code quality Perform complex tasks easily Increase productivity Write clean and reusable programs

 What is Object-Oriented Programming (OOP) What is a Class? A class is a blueprint or template used to create objects. It defines the structure and behavior that every object created from it will have. A class itself does not store actual values. Instead, it describes what properties and actions an object should contain. Real-Life Example Imagine an architect creating a blueprint for a house. The blueprint describes: Number of rooms Doors Windows Kitchen The blueprint is the class. The actual house built from that blueprint is an object. Python Example class Student:     pass Here, Student is a class. What is an Object? An object is a real instance of a class. Objects occupy memory and contain actual values. A single class can create many different objects. Real-Life Example Suppose a school has a class named Student. Students may include: Rahul Priya Sneha Amit ...