README.md

Module 060: Milestone Project: Personal Expense Tracker (CSV-backed)

• Phase: 6. Advanced OOP & Errors
• Duration: 3 hours
• Milestone: Yes

Learning Objectives

• Apply OOP principles (classes, composition, properties) in a real project
• Persist data using the csv module
• Handle errors gracefully throughout the application
• Build a complete CLI application from scratch
• Organize code into a maintainable project structure

Topics Covered

• Expense class with attributes (date, category, amount, description)
• ExpenseTracker class for CRUD operations
• CSV persistence with csv.DictReader / csv.DictWriter
• Error handling for file I/O and user input
• Monthly summary calculation
• Category-based filtering

Project Structure

module-060-mini-project-expense-tracker/
  README.md
  notebook.ipynb
  exercises.md
  solutions.md
  solutions.py
  quiz.md
  project/
    README.md
    starter_code.py
    solution/
      expense_tracker.py

Next Module

Module 061