🧑‍🎓 Student Database Management System (Python)

A simple Student Database Management System written in Python, using the Pandas library to organize and export student data to CUSTOM PATH.
This program runs entirely in the terminal and allows users to manage student records interactively.

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📋 Features

• ➕ Add new students to the database
• ➖ Remove students from the database
• 👀 View list of all students
• 📄 View individual student details
• 🧮 Calculate and display grades based on marks
• 📊 Show all student details in tabular form
• 📂 Export student records to an Excel spreadsheet to CUSTOM PATH
• 🧹 Clear the entire database
• 🚪 Exit safely

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🧠 How It Works

The system uses a Student class to store individual student details (name, roll number, and marks).
All students are kept in Python lists (student_list and student_name_list) while the program runs.
A helper function get_data() converts this in-memory data into a Pandas DataFrame for display and exporting.

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🏗️ Code Overview

🧾 Class: Student

class Student:
    def __init__(self, name, roll_number, marks):
        self.name = name
        self.roll_number = roll_number
        self.marks = marks

    def display(self):
        print(f"\n----Student details----\n"
              f"Name : {self.name}\n"
              f"Roll Number : {self.roll_number}\n"
              f"Marks : {self.marks}")

    def calculate_grade(self):
        if self.marks >= 90:
            print("Grade : A")
        elif self.marks >= 75:
            print("Grade : B")
        elif self.marks >= 50:
            print("Grade : C")
        else:
            print("Grade : F")