Regarding that am working a lot with django these days , its good to introduce Pinax :
Pinax is an open-source collection of integrated, but reusable apps for the Django Web Framework.
By integrating numerous reusable Django apps to take care of the things that many sites have in common, it lets you focus on what makes your site different.
The reason why i added it in here , that its flexible , modular , pluggable , and customizable system , which can be used for building application or complete system over it . People these days started to use it to create sites , but to see the system fully functional you may consider trying it at : Cloud27.com
Features of Pinax , which is amazingly consider other service integrations , such as importing contacts , twitter , gravatar , is a long list of features :
- openid support
- email verification
- password management
- site announcements
- a notification framework
- user-to-user messaging
- friend invitation (both internal and external to the site)
- a basic twitter clone
- oembed support
- gravatar support
- interest groups (called tribes)
- projects with basic task and issue management
- threaded discussions
- wikis with multiple markup support
- blogging
- bookmarks
- tagging
- contact import (from vCard, Google or Yahoo)
- photo management
Building an application , or customize Pinax for your project , is a bit easy if : you are a python developer , django developer and read the documentation of django .
