Django, What is it, Why is it cool? 'Cause it is built on Python and has Pinax on top, and they are all Open Source http://oswco.com
Why do I care? Open Source Low cost  Platform Agnostic No vendor lock in High Performance Modern architecture Standards Compliant Highly Modular Widely supported Internationalization support LtR language support  http://oswco.com
Django Is a Python Framework Not just a Web framework What is Python? http://oswco.com
Traditional Approach vs. Django Build Data Dictionary Build Data Base Interface Build Authoring Tools Build Logic Paint Templates Build Data Flow Done Done Done Done Done  Done Traditional Model                      Django http://oswco.com
Python An Interpreted Language with extensive corporate usage and sponsorship  Inherently Multiplatform Linux, Windows, Mac (some others) Inherently Multi Language (multi character support also) Many "packages" covering a wide variety of domains  Math : scipy  Image Recognition Corporate sponsorship: Google Microsoft (Iron Python) Sun (Jython) http://oswco.com
Django Lots of users: Google NASA PBS Bit-Bucket Newspapers  http://oswco.com
Django as a framework   An MVC type framework (Called MVT in Django) M= Model, The database interface V= View, Logic for getting stuff in and out of the database T= Template, The display logic Closest competitor is Ruby on Rails Microsoft playing catch up in MVC frameworks still almost Beta Java examples are Grails, Spring, Struts or Java Server Faces PHP has dozens Symfony, CodeIgniter   For the Web MVT (or MVC) is as important a concept as "Structured Programming" and dates back to 1979.   Enables easier maintenance and independent development of functional modules with different skill sets http://oswco.com
Django layers (MVT) Model ..View...Template Model Database interface an abstraction Supports: Mysql MSsql Oracle Postgre Sql IBM Db2 Sql lite In general: change the DataBase and don't touch your code Define model, Admin gets generated automatically So does the database Most data editing http://oswco.com
Django View Most Business logic edits, calculations permissions many libraries available  Context processors: More advanced business logic http://oswco.com
Template Simple template language Css is separate designed for non technical users such as designers Easily able to use other Template models (Jinga) Can be used with most advanced front end tools: Ajax Jquery Pyjamas (an upcoming Python Web Presentation tool) Flash Adobe Air http://oswco.com
Other Django features Unique in being built on standard language and able to take advantage of libraries developed for other purposes, Imaging, graphics, scientific calculations and many more.  Extensive configuration file Different Databases Different sites Different operating systems Different Caching frameworks Structure allows site optimization across specialized servers Static media Media  And now also Pinax which is a  collection of pre-configured applications written in Django http://oswco.com
Other Django features continued Loosely coupled Alternative Model layer, Sql Alchemy Alternative Template layer, Jinga, Jinga2 Many users constantly adding modules and features http://oswco.com
Pinax Pre-assembled Django Applications Permissions  Blog Social site Project site Sales site http://oswco.com
Tools Python Python Debug tools Django debug toolbar Eclipse Pydev Pylint Pytest Doc test Unit test Embedded documentation via Sphinx Change control done with Distributed change control tool GIT (used by the Linux development team) http://oswco.com