Python Packages Task 1 – Calculator Tools

🐍 *Python Packages Task 1 | Build Your First Reusable Python Package* In this task, we move beyond writing everything inside a single Python file and learn how to build a *reusable Python package* using multiple modules. We build a practical `calculator_tools` package that demonstrates how Python code can be organized, reused, and maintained efficiently. 📦 What We Build ```text calculator_tools/ ├── __init__.py ├── arithmetic.py ├── statistics.py ├── converter.py └── exceptions.py main.py README.md ``` 🚀 Features Covered ✅ Basic arithmetic operations ✅ Percentage calculation ✅ Average calculation ✅ Celsius ↔ Fahrenheit conversion ✅ Kilometers ↔ Miles conversion ✅ Input validation ✅ Division-by-zero handling ✅ Invalid data type handling ✅ Unsupported operation handling ✅ Custom `InvalidOperationError` exception ✅ Package imports ✅ `__init__.py` ✅ Helper functions ✅ `if _name_ == "__main__"` 🧠 Key Python Concepts In this project, we understand the difference between: *Function → Module → Package → Import → Reusable Application* We also learn why it is better to separate functionality into different modules instead of putting everything into one large Python file. 🎯 Learning Objective By completing this task, you will understand how to: Create your own Python package Organize code into multiple modules Import functions from a package Create custom exceptions Handle different types of errors Validate user input Build reusable Python functionality Structure a small real-world Python project This is a practical step toward writing **clean, modular, maintainable Python applications**. 👍 If you find this useful, *Like, Share & Subscribe* for more Python programming and hands-on coding tasks. #Python #PythonProgramming #PythonForBeginners #PythonPackages #PythonModules #LearnPython #PythonTutorial