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  • Book Overview & Buying Getting Started with Python and Raspberry Pi (Redirected from Learning Python By Developing Raspberry Pi Applications)
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Getting Started with Python and Raspberry Pi (Redirected from Learning Python By Developing Raspberry Pi Applications)

Getting Started with Python and Raspberry Pi (Redirected from Learning Python By Developing Raspberry Pi Applications)

By : Nixon
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Getting Started with Python and Raspberry Pi (Redirected from Learning Python By Developing Raspberry Pi Applications)

Getting Started with Python and Raspberry Pi (Redirected from Learning Python By Developing Raspberry Pi Applications)

3 (1)
By: Nixon

Overview of this book

The Raspberry Pi is one of the smallest and most affordable single board computers that has taken over the world of hobby electronics and programming, and the Python programming language makes this the perfect platform to start coding with. The book will start with a brief introduction to Raspberry Pi and Python. We will direct you to the official documentation that helps you set up your Raspberry Pi with the necessary equipment such as the monitor, keyboard, mouse, power supply, and so on. It will then dive right into the basics of Python programming. Later, it will focus on other Python tasks, for instance, interfacing with hardware, GUI programming, and more. Once you get well versed with the basic programming, the book will then teach you to develop Python/Raspberry Pi applications. By the end of this book, you will be able to develop Raspberry Pi applications with Python and will have good understanding of Python programming for Raspberry Pi.
Table of Contents (13 chapters)
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12
Index

Using urllib2 to download data


Before we get on to processing the data we extract from the online sources, we will first demonstrate use of the in-built urllib2 Python module for downloading data from the internet.

This will be used in all the examples later on in the chapter for parsing information downloaded from the various online sources.

In the following example, we will write a simple script that will download the text contents of a web page and print them to the terminal. This is not a practical use for this module, however it does demonstrate the use of the module for retrieving data from web resources.

We will start by importing the Python modules required for this script. We will save this script file as urllib_example.py:

import urllib2
import sys

In this line, we are taking the first argument on the command line as a URL to open and return the HTML contents of:

url = sys.argv[1]

Now, we will create a request object that represents a request to be sent to the web server. This is not...

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