Book Image

Getting Started with Python for the Internet of Things

By : Tim Cox, Steven Lawrence Fernandes, Sai Yamanoor, Srihari Yamanoor, Prof. Diwakar Vaish
Book Image

Getting Started with Python for the Internet of Things

By: Tim Cox, Steven Lawrence Fernandes, Sai Yamanoor, Srihari Yamanoor, Prof. Diwakar Vaish

Overview of this book

This Learning Path takes you on a journey in the world of robotics and teaches you all that you can achieve with Raspberry Pi and Python. It teaches you to harness the power of Python with the Raspberry Pi 3 and the Raspberry Pi zero to build superlative automation systems that can transform your business. You will learn to create text classifiers, predict sentiment in words, and develop applications with the Tkinter library. Things will get more interesting when you build a human face detection and recognition system and a home automation system in Python, where different appliances are controlled using the Raspberry Pi. With such diverse robotics projects, you'll grasp the basics of robotics and its functions, and understand the integration of robotics with the IoT environment. By the end of this Learning Path, you will have covered everything from configuring a robotic controller, to creating a self-driven robotic vehicle using Python. • Raspberry Pi 3 Cookbook for Python Programmers - Third Edition by Tim Cox, Dr. Steven Lawrence Fernandes • Python Programming with Raspberry Pi by Sai Yamanoor, Srihari Yamanoor • Python Robotics Projects by Prof. Diwakar Vaish
Table of Contents (37 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

File I/O


We are discussing file I/O for two reasons:

  • In the world of Linux operating systems, everything is a file. Interaction with peripherals on the Raspberry Pi is similar to reading from/writing to a file. For example: In Chapter 12 , Communication Interfaces, we discussed serial port communication. You should be able to observe that serial port communication is like a file read/write operation.
  • We use file I/O in some form in every project. For example: Writing sensor data to a CSV file or reading pre-configured options for a web server, and so on.

Hence, we thought it would be useful to discuss file I/O in Python as its own chapter (detailed documentation available from here: https://docs.python.org/3/tutorial/inputoutput.html#reading-and-writing-files) and discuss examples where it could play a role while developing applications on the Raspberry Pi Zero.

Reading from a file

Let's create a simple text file, read_file.txt with the following text: I am learning Python Programming using the...