Appendix D. Installing and Running Google App Engine on a Linux System

MarcAlierJordiPiguillem Poch

This appendix describes the installation of the Google App Engine Software Development Kit (SDK) on Linux, plus how to run a simple “Hello, world” application.

The App Engine SDK allows you to run Google App Engine Applications on your local computer. It simulates the runtime environment of the Google App Engine infrastructure.

Checking for Python

Google App Engine needs the Python interpreter to work on your system. Python comes usually preinstalled on most Linux distributions. To check whether Python is installed, open a Terminal window and type python to execute the Python interpreter:

Python 2.5.2 (r252:60911, Feb 22 2008, 07:57:53)

The first line will show you the version of Python running on your system. Type exit() to return to the command line.

If Python is not installed or you have a version other than 2.5.x, you will need to download this version (2.5) of Python from Check to see whether there is a package containing Python 2.5 for your Linux distribution.

Download and Install

Download the Google App Engine SDK from; download the appropriate install package, as shown in Figure D-1.

Downloading Google Application Engine
Figure D-1. Downloading Google Application Engine

In this case, you must download the Linux package onto your computer’s desktop, ...

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