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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

Sensing and sending data to online services


In this section, we shall make use of an online service called Xively; the service allows us to connect, transmit, and view data online. Xively makes use of a common protocol that is used for transferring information over HTTP, called REpresentational State Transfer (REST). REST is used by many services such as Facebook and Twitter, using various keys and access tokens to ensure data is transferred securely between authorized applications and the verified sites.

You can perform most REST operations (methods such as POST, GET, SET, and so on) using a Python library called requests (http://docs.python-requests.org), manually.

However, it is often easier to make use of specific libraries available for the service you intend to use. They will handle the authorization process; provide access functions; and, if the service changes, the library can be updated rather than your code.

We will use the xively-python library, which provides Python functions to...

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