Book Image

Modular Programming with Python

By : Erik Westra
Book Image

Modular Programming with Python

By: Erik Westra

Overview of this book

Python has evolved over the years and has become the primary choice of developers in various fields. The purpose of this book is to help readers develop readable, reliable, and maintainable programs in Python. Starting with an introduction to the concept of modules and packages, this book shows how you can use these building blocks to organize a complex program into logical parts and make sure those parts are working correctly together. Using clearly written, real-world examples, this book demonstrates how you can use modular techniques to build better programs. A number of common modular programming patterns are covered, including divide-and-conquer, abstraction, encapsulation, wrappers and extensibility. You will also learn how to test your modules and packages, how to prepare your code for sharing with other people, and how to publish your modules and packages on GitHub and the Python Package Index so that other people can use them. Finally, you will learn how to use modular design techniques to be a more effective programmer.
Table of Contents (16 chapters)
Modular Programming with Python
About the Author
About the Reviewer

Examples of reusable modules

You don't have to look very far to find examples of reusable modules; the Python Package Index ( provides a huge repository of shared modules and packages. You can search for a package by name or keyword, or you can browse through the repository by topic, license, intended audience, development status, and so on.

While the Python Package Index is huge, it is also extremely useful: all of the most successful packages and modules are included. Let's look more closely at some of these more popular reusable packages.


The requests library ( is a Python package that makes it easy to send HTTP requests to remote servers and process the response. While the urllib2 package included in the Python Standard Library does allow you to make HTTP requests, it is often difficult to use and fails in unexpected ways. The requests package is far easier to use and more reliable; as a result, it has become...