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 4. Using Modules for Real-World Programming

In this chapter, we are going to use modular programming techniques to implement a useful real-world system. In particular, we will:

  • Design and implement a Python package for generating charts

  • See how changing requirements can be the downfall of a successful system

  • Discover the ways in which modular programming techniques can help you to deal with changing requirements in the best possible way

  • Learn that changing requirements can be good, because they give you the opportunity to re-think your program, resulting in more robust and well-designed code

Let's start by looking at the Python chart-generating package we are going to implement, which we will call Charter.