Eclipse is a kind of universal tool platform – an open extensible IDE for anything and nothing in particular.
( Ref: 
http://www.eclipse.org )
http://www.eclipse.org/downloads/index.php
Why I teach Eclipse
Gary Pollice ;Professor of Practice, Worcester Polytechnic Institute ; 15 Jun 2005
Eclipse Plugin, ¹Ò¢éÒÇâ¾´ËÇÒ¹
Eclipse Plugins, eclipse-plugins.info
SDE for Eclipse – An UML Plugin for Eclipse
Using Eclipse as a Python editor
Eclipseplugincentral.com