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

Chapter 5. Working with Module Patterns

In the previous chapters, we have looked in detail at how Python modules and packages work, and learned how you can use them in your programs. When using modular programming techniques, you will find that the ways in which modules and packages are used tend to follow standard patterns. In this chapter, we will examine a number of these common patterns for using modules and packages to deal with a range of programming challenges. In particular, we will:

  • Learn how the divide and conquer technique helps you to solve programming problems

  • See how the principle of abstraction helps you to separate what you want to do from how you do it

  • Discover how encapsulation allows you to hide the details of how information is represented from the rest of your system

  • See that wrappers are modules that call other modules to simplify or alter the way a module is used

  • Learn how to create extensible modules

Let's start by looking at the principle of divide and conquer.