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.

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Modular Programming with Python
Erik Westra
May, 2016 | 246 pages
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Table of Contents (16 chapters)
Modular Programming with Python
Modular Programming with Python
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Introducing Modular Programming
Introducing Modular Programming
Introducing Python modules
Introducing Python packages
Using modules and packages to organize a program
Why use modular programming techniques?
Programming as a process
The Python Standard Library
Creating your first module
Summary
2
Writing Your First Modular Program
Writing Your First Modular Program
The inventory control system
Designing the inventory control system
Implementing the inventory control system
Summary
3
Using Modules and Packages
Using Modules and Packages
Modules and packages
Packages within packages
Initializing a module
Initializing a package
How to import anything
Controlling what gets imported
Circular dependencies
Running modules from the command line
Summary
4
Using Modules for Real-World Programming
Using Modules for Real-World Programming
Introducing Charter
Designing Charter
Implementing Charter
The fly in the ointment – changing requirements
Redesigning Charter
Refactoring the code
Lessons learned
Summary
5
Working with Module Patterns
Working with Module Patterns
Divide and conquer
Abstraction
Encapsulation
Wrappers
Extensible modules
Summary
6
Creating Reusable Modules
Creating Reusable Modules
Using modules and packages to share your code
What makes a module reusable?
What makes a good reusable module?
Examples of reusable modules
Designing a reusable package
Implementing a reusable package
Testing our reusable package
Summary
7
Advanced Module Techniques
Advanced Module Techniques
Optional imports
Local imports
Tweaking imports using sys.path
Import gotchas
Using modules and packages with the Python interactive interpreter
Dealing with global variables
Package configuration
Package data
Summary
8
Testing and Deploying Modules
Testing and Deploying Modules
Testing modules and packages
Preparing a module or package for publication
Uploading your work to GitHub
Submitting to the Python Package Index
Using pip to download and install modules and packages
Summary
9
Modular Programming as a Foundation for Good Programming Technique
Modular Programming as a Foundation for Good Programming Technique
The process of programming
Dealing with complexity
Being an effective programmer
Summary
Index
Index

Modular Programming with Python

Copyright © 2016 Packt Publishing

All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.

Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book.

Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.

First published: May 2016

Production reference: 1200516

Published by Packt Publishing Ltd.

Livery Place

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Birmingham B3 2PB, UK.

ISBN 978-1-78588-448-1

www.packtpub.com

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