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Modules & Libraries

Organize code with modules, install packages with pip, and use Python's standard library tools.

Intermediate

2 hours

3 lessons

Course Content

15 chapters across 3 lessons

1

Modules & Imports

Organize code across multiple files using imports

5 chapters

Progress0%

What Are Modules?

Understand why splitting code into multiple files matters

Importing Modules

Use import, from...import, and aliases to bring code into your file

Creating Your Own Module

Split code into two files and import between them

The __name__ Pattern

Make modules that work both as imports and as standalone scripts

Mini Project: Math Utilities

Build a reusable math utility module with multiple functions

2

The Python Ecosystem

Install and manage third-party packages with pip and venv

5 chapters

Progress0%

Understand package managers, PyPI, and why third-party libraries exist

Installing Packages

Install, inspect, and manage packages with pip

Virtual Environments

Create isolated Python environments to avoid dependency conflicts

Requirements Files

Save and restore project dependencies with requirements.txt

Mini Project: Use a Library

Install and use the rich library to build colorful terminal output

3

Useful Standard Library Tools

Know and use key built-in Python modules

5 chapters

Progress0%

Navigate the filesystem, list files, and check paths in Python

Work with dates, times, formatting, and time differences

Use Counter, defaultdict, and namedtuple for specialized data handling

Build command-line interfaces that accept arguments and options

Mini Project: File Organizer

Build a CLI tool that sorts files into folders by extension