Python Mastery – From Basics to Brilliance / Modules & Packages

Packages

📦 Python Packages

A package is a way of organizing related Python modules into a folder.

Think of it like:

📦 Package
 ├── 📄 module1.py
 ├── 📄 module2.py
 └── 📄 module3.py

🗂️ Creating a Package

Example:

my_package/
    __init__.py
    calculator.py
    greeting.py

Here, my_package is the package, while calculator.py and greeting.py are modules.

📥 Importing from a Package

from my_package import calculator

calculator.add(10, 5)

Or import something directly:

from my_package.calculator import add

print(add(10, 5))

📦 Package vs Module

Module 📄

Package 📦

Usually a single .py file

Folder containing modules

Contains functions, classes, etc.

Organizes related modules

Example: calculator.py

Example: my_package/

⭐ Remember

  • Module → A Python file

  • Package → A folder containing related Python modules