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Raspberry Pi cookbook for Python programmers

You're reading from   Raspberry Pi cookbook for Python programmers The Raspberry Pi Cookbook has over 50 tailor-made recipes for programmers to get the most out of Raspberry Pi using Python to unleash its huge potential.

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Product type Paperback
Published in Apr 2014
Publisher
ISBN-13 9781849696623
Length 402 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (18) Chapters Close

Raspberry Pi Cookbook for Python Programmers
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started with a Raspberry Pi Computer FREE CHAPTER 2. Starting with Python Strings, Files, and Menus 3. Using Python for Automation and Productivity 4. Creating Games and Graphics 5. Creating 3D Graphics 6. Using Python to Drive Hardware 7. Sense and Display Real-world Data 8. Creating Projects with the Raspberry Pi Camera Module 9. Building Robots 10. Interfacing with Technology Hardware and Software List Index

Introduction


In this chapter, we shall jump into using Python to perform some basic encryption by scrambling letters. This will introduce some basic string manipulation, user input, progressing on to creating reusable modules, and finally graphical user interfaces.

To follow, we shall create some useful Python scripts that can be added to run as the Raspberry Pi boots or as an easy-to-run command that will provide quick shortcuts to common or frequently used commands. Taking this further, we shall make use of threading to run multiple tasks and introduce classes to define multiple objects.

Since it is traditional to start any programming exercise with a Hello World example, we shall kick off with that now.

Create the hellopi.py file using nano as follows:

nano -c hellopi.py

Within our hellopi.py file, add the following code:

#!/usr/bin/python
#hellopi.py
print ("Hello Raspberry Pi")

When done, save and exit (Ctrl + X, Y, and Enter). To run the file, use the following command:

python3 hellopi...
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