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Practical Python Programming for IoT

You're reading from   Practical Python Programming for IoT Build advanced IoT projects using a Raspberry Pi 4, MQTT, RESTful APIs, WebSockets, and Python 3

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Product type Paperback
Published in Nov 2020
Publisher Packt
ISBN-13 9781838982461
Length 516 pages
Edition 1st Edition
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Author (1):
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Gary Smart Gary Smart
Author Profile Icon Gary Smart
Gary Smart
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Table of Contents (20) Chapters Close

Preface 1. Section 1: Programming with Python and the Raspberry Pi
2. Setting Up your Development Environment FREE CHAPTER 3. Getting Started with Python and IoT 4. Networking with RESTful APIs and Web Sockets Using Flask 5. Networking with MQTT, Python, and the Mosquitto MQTT Broker 6. Section 2: Practical Electronics for Interacting with the Physical World
7. Connecting Your Raspberry Pi to the Physical World 8. Electronics 101 for the Software Engineer 9. Section 3: IoT Playground - Practical Examples to Interact with the Physical World
10. Turning Things On and Off 11. Lights, Indicators, and Displaying Information 12. Measuring Temperature, Humidity, and Light Levels 13. Movement with Servos, Motors, and Steppers 14. Measuring Distance and Detecting Movement 15. Advanced IoT Programming Concepts - Threads, AsyncIO, and Event Loops 16. IoT Visualization and Automation Platforms 17. Tying It All Together - An IoT Christmas Tree 18. Assessments 19. Other Books You May Enjoy

Alternative methods of executing a Python script

Let's briefly turn our attention to the alternative ways that we can execute a Python script. As we will learn, choosing the appropriate method is all based around how and from where you intend to start your script and whether your code requires elevated permissions.

The most common way of running a Python script is from within its virtual environment and with the permissions of the currently logged in user. However, there will be scenarios where we need to run a script as the root user or from outside an activated virtual environment.

Here are the ways we will explore:

  • Using sudo with virtual environments
  • Executing Python scripts outside of their virtual environments
  • Running a Python script at boot

Let's start by learning how to run a Python script with root user permissions.

You have been reading a chapter from
Practical Python Programming for IoT
Published in: Nov 2020
Publisher: Packt
ISBN-13: 9781838982461
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