Python Django-1.3
Django lets you build high-performing, elegant Web applications quickly.
This software is a high-level Python Web framework that encourages rapid development and clean, pragmatic design.
Django was designed to handle two challenges: the intensive deadlines of a newsroom and the stringent requirements of the experienced Web developers who wrote it.
Django has full support for multi-language applications, letting you specify translation strings and providing hooks for language-specific functionality.