🎓 Student Management System (Python)

A simple, menu-driven Student Management System built with core Python. It lets you add, view, search, update, and delete student records, with all data automatically saved to a JSON file.

This project is built as a beginner-friendly, portfolio-ready application. It uses only functions, loops, dictionaries, and JSON file handling — no OOP, no databases, no APIs, and no external libraries.

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📋 Project Description

The Student Management System is a command-line application that stores student records (Roll Number, Name, Age, Marks) in a JSON file called students.json. Every time the program starts, it automatically loads existing records, and every time you add, update, or delete a student, the changes are saved back to the file immediately.

The program is organized into small, focused functions, making the logic easy to follow, test, and explain.

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✨ Features

• ➕ Add Student — with full input validation
• 📋 View Students — clean, aligned table format
• 🔍 Search Student — by roll number
• ✏️ Update Student — edit name, age, or marks (leave blank to keep current value)
• 🗑️ Delete Student — with confirmation prompt
• 🔢 Total Students — quick count of all records
• 💾 Automatic JSON file loading/saving on every change
• 🛡️ Handles missing, empty, or corrupted JSON files gracefully
• ✅ Validates unique roll numbers, non-empty names, age (3–100), and marks (0–100)
• 🚫 Handles invalid input using try-except without crashing

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🛠️ Technologies Used

• Language: Python 3
• Modules: json, os (both built into Python — no installation needed)
• Concepts: Functions, Lists, Dictionaries, Loops, Conditionals, Exception Handling, File Handling

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📁 Folder Structure

Student-Management-System/
│── student_management.py   # Main program
│── students.json            # Student data (auto-created/updated)
│── README.md                 # Project documentation

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⚙️ Installation

1. Make sure Python 3 is installed:

   python --version
   

2. Clone or download this repository.
3. No extra packages are required — the project only uses Python's built-in json and os modules.

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🚀 How to Run

1. Open a terminal in the project folder:

   cd Student-Management-System
   

2. Run the program:

   python student_management.py
   

3. Use the on-screen menu to manage student records.

students.json is created automatically the first time you run the program if it doesn't already exist.

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💡 Sample Output

==================================
 STUDENT MANAGEMENT SYSTEM
==================================
1. Add Student
2. View Students
3. Search Student
4. Update Student
5. Delete Student
6. Total Students
7. Exit
==================================
Enter your choice: 1

--- Add Student ---
Enter Roll Number: 1
Enter Name: Farhan Khizar
Enter Age: 21
Enter Marks: 88
Student 'Farhan Khizar' added successfully.

Enter your choice: 2

--- All Students ---
Roll No   Name                Age     Marks
----------------------------------------------
1         Farhan Khizar       21      88.00

Enter your choice: 7

Exiting Student Management System. Goodbye!

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📚 Learning Outcomes

Building this project helped reinforce the following concepts:

• Reading and writing data using JSON file handling
• Structuring a program around modular functions
• Using dictionaries and lists to model real-world records
• Writing solid input validation with try-except
• Handling edge cases like missing or corrupted files
• Building a clean, loop-based menu system
• Writing readable code that follows PEP 8 style

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🔮 Future Improvements

• Sort students by name, age, or marks
• Export student records to a CSV file
• Add a simple text-based report/summary view
• Search students by name
• Add grade calculation (A, B, C, D)
• Display average marks
• Display highest and lowest marks

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👤 Author

Farhan Khizar

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📄 License

This project is open-source and available for learning purposes under the MIT License.