Student Report Card (CLI)

A simple Python command-line app to manage student marks, calculate averages, assign grades, and persist data to data.json.

Features

• Add, update, delete students
• View a report of all students (marks, average, grade)
• Persistent storage in data.json

Project Structure

• app.py: CLI menu and program entry
• classes.py: Student and GradeManager classes
• jsonFile_handler.py: Save/load helpers for data.json
• data.json: JSON data store for students

Requirements

• Python 3.8+

Setup

1. Clone or download the project.
2. (Optional) Create a virtual environment.
3. Ensure data.json exists with valid JSON (a prefilled dataset is included).

Running the App

python app.py

Using the CLI

You will see a menu with options:

1. Display Report: prints each student's marks, average, and grade.
2. Add new Student: prompts for name and three marks (Math, English, Science). An ID like 123-A is auto-generated.
3. Update student Records: provides student ID, then enter subject,score to add/update that subject.
4. Delete a student Record: removes a student by ID.
5. Exit: saves current data back to data.json.

Notes:

• Subjects are stored as a dictionary; new subjects can be added during update.
• Grades are computed from average: A (>=90), B (>=80), C (>=70), F (<70).

Data Format (data.json)

data.json is an object whose keys are numeric strings ("0", "1", ...). Each value is a student record:

{
  "0": {
    "id": "101-A",
    "name": "Alice Johnson",
    "subjects": {"Math": 95, "English": 88, "Science": 92},
    "grade": "A",
    "average": 91.67
  }
}

Common Issues

• If data.json is empty/invalid, the app may fail to load. Ensure it contains valid JSON.
• When adding via CLI, enter marks as comma-separated integers, e.g.: 90,80,85.

Extend the App

• Add more subjects or validation for scores.
• Improve CLI input handling and error messages.
• Build a GUI or web API on top of GradeManager.

License

MIT