The document discusses using Django for enterprise projects. It describes one company, Tschitschereengreen, that develops many Django projects, including for large enterprises. To convince IT departments, they explain Django using similar frameworks and ensure initial deployments are successful. They have used Jython to run Django within J2EE environments on Tomcat, though it has performance limitations. With the right approach and focus on business needs over technology, the document argues Django can integrate well into enterprise IT environments.

1. DJANGO AT THE ENTERPRISE
Jirka Schäfer, Tschitschereengreen
Berlin, 24. Mai 2010

2. Tschitschereengreen
➢ Develops web apps for creative agencies
➢ 50% of all projects are Django based. In 2010 > 80%
➢ For nearly two years 95% of all projects were in time and budget
➢ Projects include online-journals, web portals, custom CRM and CMS systems, real
estate portals as well as web services
➢ Django is one of the main sources for project stability due to high quality of libraries
and precicious stack traces and error messages
➢ By the end of 2009 our customers started to pull us towards projects for large
enterprises

3. DJANGO – THE BUSINESS PERSPECTIVE
➢ Nobody cares about Django
➢ Enterprise cares about budget, flexibility and IT guidlines
➢ Creative Agency cares about flexibility and budget
➢ Tschitschereengreen (subcontractor) cares about flexibility, speed and reliable
technology

4. CONVINCE THE CTO
1) Do only projects which do have significant support by senior level management
2) Ask for requirement „runnable under J2EE and Oracle“ and get approved
3) Explain Django with „Some framework like Groovy, Spring etc.“
4) Deliver the SQL-Create Statements as well as the WAR-File with the note „Just deploy
as used to“
5) Ensure that the initial deployment is successfull at the first attempt, so nobody starts
asking.
Be aware that the whole process ist highly political!
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5. RUNNING DJANGO INSIDE
➢ Used Jython as Wrapper in J2EE environment (server:Tomcat)
➢ Some native Python libs don't run under Jython (PIL etc) (!)
➢ Performance issues for larger Django projects with Jython (x10)
➢ Exceptions
➢ Jython PostgreSQL-JDBC interface rewrite
➢ Django Oracle 11g Standard E. Driver rewrite
➢ Implemented lazy JSON field
➢ User authentication via servlet
➢ Installation on Tomcat with WAR-file
➢ No special libraries on server required
➢ SQL migration with plain SQL statements
➢ Server access only by VPN+Webinterface
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6. CONCLUSIONS
➢ Among all other dynamic scripting languages Django is very easy to integrate into
enterprise IT environments
➢ Main success factor for Django in „Big Business“ ist not the technology, its the things
you do with!
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7. CONTACT
http://www.tschitschereengreen.com
Jirka Schäfer
Tschitschereengreen
jirka.schaefer@tschitschereengreen.com
+49 (0) 351 404 5507
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