Book Image

Raspberry Pi Zero Cookbook

Book Image

Raspberry Pi Zero Cookbook

Overview of this book

The Raspberry Pi Zero, one of the most inexpensive, fully-functional computers available, is a powerful and revolutionary product developed by the Raspberry Pi Foundation. The Raspberry Pi Zero opens up a new world for the makers out there. This book will give you expertise with the Raspberry Pi Zero, providing all the necessary recipes that will get you up and running. In this book, you will learn how to prepare your own circuits rather than buying the expensive add–ons available in the market. We start by showing you how to set up and manage the Pi Zero and then move on to configuring the hardware, running it with Linux, and programming it with Python scripts. Later, we integrate the Raspberry Pi Zero with sensors, motors, and other hardware. You will also get hands-on with interesting projects in media centers, IoT, and more.
Table of Contents (17 chapters)
Raspberry Pi Zero Cookbook
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Playing with strings


String manipulation is a common programming task and also important when doing things such as sensor data collection. Python is well equipped for taking a string of characters and modifying it to be more human- or spreadsheet-readable. We're going to take the program we started making in the previous recipe and spice it up to analyze the strings and return some more interesting information!

Getting ready

If you completed the previous recipe, you just need rpz_log_analysis.py open. If you've pulled the source code, you can read rpz_log_analysis_strings.py to run the completed program from this recipe.

How to do it...

  1. We're going to work off of the original code from the last recipe, modify it a bit, and then add to it. Here is the full code below the comment block:

        #!/usr/bin/env python 
        # COMMENTS BLOCK 
        startuplog = "/var/log/rpz_startup.log" 
        templog = "/var/log/rpz_temp.log" 
     
        def main(): 
              summary() 
     ...