Getting Started with Python and Raspberry Pi电子书

Getting Started with Python and Raspberry Pi

Table of Contents

Getting Started with Python and Raspberry Pi

Credits

About the Author

About the Reviewers

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Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Your First Steps with Python on the Pi

Installing and setting up Raspbian

Writing to the SD card

Windows

Linux and Mac

Booting the Pi for the first time

The Python development tools

Python 2 versus Python 3

Running some simple Python scripts

Summary

2. Understanding Control Flow and Data Types

Data in Python

Numerical types

Operations on numerical types

String manipulation

String functions

String formatting

String templates

Control flow operators

Using functions

Summary

3. Working with Data Structures and I/O

Data structures

Lists

Creating lists

List operations

Dictionaries

Creating dictionaries

Dictionary operations

Sets

Set operations

Frozen sets

Tuples

Input/output

The os.path module

Reading and writing files

Summary

4. Understanding Object-oriented Programming and Threading

Object-oriented programming

Classes in Python

Operation.py

Calculator.py

Using the module

Inheritance

Threading

Locks

Summary

5. Packaging Code with setuptools

Using packages in your Python code

Importing modules

Installing modules manually

Installing modules using pip

Installing modules using apt

Packaging your own Python modules

Packaging a library

Adding an entry point

Summary

6. Accessing the GPIO Pins

Digital electronics

The GPIO library

Single LED output

PWM output

Multiple outputs

Basic switch

Switch using interrupt

Universal Asynchronous Receiver/Transmitter (UART)

Setting up the serial port

Using pySerial

Additional libraries

Summary

7. Using the Camera Module

Setting up the camera module

Installing and testing the Python library

Writing applications for the camera

A time lapse recorder

A point-and-shoot camera

An image effect randomizer

Summary

8. Extracting Data from the Internet

Using urllib2 to download data

Parsing JSON APIs

Parsing XML APIs

The DOM method

The SAX method

Parsing a web page using BeautifulSoup

Summary

9. Creating Command-line Interfaces

Unit conversion application

Command-line interface

Summary

10. Debugging Applications with PDB and Log Files

The Python debugger

Writing log files

Unit testing

Summary

11. Designing Your GUI with Qt

Setting up the codebase

Building the UI with Qt Designer

Writing the UI code

Launching the UI

Packaging the code

Summary

Index