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Raspberry Pi Zero Cookbook

You're reading from   Raspberry Pi Zero Cookbook Delve into the practical world of the Raspberry Pi Zero

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781786463852
Length 422 pages
Edition 1st Edition
Languages
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Author (1):
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Edward Snajder Edward Snajder
Author Profile Icon Edward Snajder
Edward Snajder
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Toc

Table of Contents (11) Chapters Close

Preface 1. Kick-Start Your Raspberry Pi Zero FREE CHAPTER 2. Setting Up Physical and Wireless Connections 3. Programming with Linux 4. Programming with Python 5. Getting Your Hands Dirty Using the GPIO Header 6. Controlling the LEDs and Displays 7. Controlling the Hardware 8. Taking Digital Inputs to the Raspberry Pi Zero 9. Interfacing Sensors with the Raspberry Pi Zero 10. Cooking up Projects to Amaze the World!

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() 
     ...
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