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

The inventory control system

Imagine that you have been asked to write a program that allows the user to keep track of the company's inventory—that is, the various items the company has available for sale. For each inventory item, you have been asked to keep track of the product code and the item's current location. New items will be added as they are received, and existing items will be removed once they have been sold. Your program will also need to generate two types of reports: a report listing the company's current inventory, including how many of each type of item there are in each location, and a report that is used to re-order inventory items once they have been sold.

Looking at these requirements, it is clear that there are three different types of information that we will need to store:

  1. A list of the different types of products that the company has for sale. For each product type, we will need to know the product code (sometimes called an SKU number), a description, and the desired...