![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](https://image.slidesharecdn.com/portland-doj-1222356473610292-8/85/Django-On-Jython-for-Portland-and-Boulder-Python-user-groups-presentations-8-320.jpg)
Django On Jython (for Portland and Boulder Python user groups presentations)
- 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
- 24. Demo
- 25. Thanks!