Your SlideShare is downloading. ×
Django On Jython (for Portland and Boulder Python user groups presentations)
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Introducing the official SlideShare app

Stunning, full-screen experience for iPhone and Android

Text the download link to your phone

Standard text messaging rates apply

Django On Jython (for Portland and Boulder Python user groups presentations)

1,736
views

Published on

Published in: Technology

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
1,736
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
31
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Django on Jython
    • Leo Soto
  • 2.
    • Not exactly “ Summer of Code” but...
    • ...worked incredibly well!
    • And that's why I'm here :)
  • 3. Why Django on Jython ?
    • Integration
    • Deployment
    • Performance
  • 4. Jython
  • 5. Jython
    • Implementation of Python
    • Compiles to Java bytecode
      • No foo.pyc
      • It's foo$py.class
  • 6. Jython
    • Makes Java look like Python
    • And Python like Java to Java programs
    • No GIL, no ref counting
  • 7. >>> from __future__ import GIL Traceback (most recent call last): ... SyntaxError: Never going to happen! (<stdin>, line 1)
  • 8. State of Jython 2.5
    • 99.4% of ~5700 test cases passing
    • ~20% faster on PyStone [FWIW]
    • 2.5 alpha 2 last weekend for DjangoCon
    • September/October beta
    • December/January final
  • 9. Java - What We Like
    • Great systems programming language
    • Well-defined memory, concurrency model
    • Standard libraries - concurrent collections
  • 10. Java Ecosystem
    • Excel, thru Apache POI support of OLE
    • Full text search with Lucene
    • Scalability with Hadoop, Hbase
    • Scala, JRuby, Rhino...
  • 11. Biggest Benefit
    • Just use what is good out there in the Java ecosystem
  • 12. Now...
  • 13. Why in the name of...
    • J2EE was a big, horrible mistake
    • But lessons have been learned
      • And it’s possible to use that infrastructure
  • 14. “We write Java so you don’t have to.”
  • 15. Combination
    • In Python code:
      • Django app framework
        • Models, templates, forms
      • Business logic - as complex as necessary
    • In Java code (optional)
      • Performant infrastructure
  • 16. Deployment Options
    • Java App Servers!
  • 17. modjy
    • Servlets <=> WSGI
  • 18. WAR!
    • Web ARchive format
      • Standard deployment of Java webapps
      • Just a zip file with a standard directory layout
  • 19. A Django WAR:
    • jython manage.py war --include-java-libs=XXX.jar
  • 20. WAR format for DoJ
    • |-- WEB-INF
    • | |-- lib ← JDBC driver
    • | `-- lib-python
    • | |-- Lib ← Python Std. library
    • | |-- django
    • | |-- doj
    • | |-- modjy-django
    • | `-- mysite ← Your code!
    • `-- media ← (and media files)
  • 21. What’s missing
    • PIL! so no Photolog
    • Oracle, MySQL, SQLServer backends
      • But that’s easy
      • zxJDBC: JDBC <=> DB-API
  • 22. Django Backend Dev
    • Features
    • Operations
    • Client
    • Creation and Introspection
    • Validation
    • Wrapper
  • 23.  
  • 24. Demo
  • 25. Thanks!