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Python Programming with Raspberry Pi

You're reading from   Python Programming with Raspberry Pi Build small yet powerful robots and automation systems with Raspberry Pi Zero

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Product type Paperback
Published in Apr 2017
Publisher Packt
ISBN-13 9781786467577
Length 312 pages
Edition 1st Edition
Languages
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Authors (2):
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Sai Yamanoor Sai Yamanoor
Author Profile Icon Sai Yamanoor
Sai Yamanoor
Srihari Yamanoor Srihari Yamanoor
Author Profile Icon Srihari Yamanoor
Srihari Yamanoor
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Toc

Table of Contents (12) Chapters Close

Preface 1. Getting Started with Python and the Raspberry Pi Zero FREE CHAPTER 2. Arithmetic Operations, Loops, and Blinky Lights 3. Conditional Statements, Functions, and Lists 4. Communication Interfaces 5. Data Types and Object-Oriented Programming in Python 6. File I/O and Python Utilities 7. Requests and Web Frameworks 8. Awesome Things You Could Develop Using Python 9. Lets Build a Robot! 10. Home Automation Using the Raspberry Pi Zero 11. Tips and Tricks

Functions in Python

We briefly discussed functions in Python. Functions execute a predefined set of task. print is one example of a function in Python. It enables printing something to the screen. Let's discuss writing our own functions in Python.

A function can be declared in Python using the def keyword. A function could be defined as follows:

def my_func(): 
print("This is a simple function")

In this function my_func, the print statement is written under an indented code block. Any block of code that is indented under the function definition is executed when the function is called during the code execution. The function could be executed as my_func().

Passing arguments to a function:

A function is always defined with parentheses. The parentheses...

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