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


In this chapter, we designed and implemented a non-trivial program to keep track of a company's inventory. Using the divide-and-conquer approach, we split the program into individual modules and then looked at the functionality that each module would need to provide. This led us to a more detailed design of the functions within each module, and we were then able to implement the overall system one step at a time. We discovered that some functionality had been overlooked and had to be added after the design was complete, and saw how modular programming makes it less likely for these types of changes to break your system. Finally, we had a quick play with the inventory control system to make sure it works.

In the next chapter, we will learn more about the nuts and bolts of how modules and packages work within Python.