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86 lines
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86 lines
3.0 KiB
Plaintext
.. _howto-jython:
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========================
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Running Django on Jython
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========================
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.. index:: Jython, Java, JVM
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Jython_ is an implementation of Python that runs on the Java platform (JVM).
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Django runs cleanly on Jython version 2.5 or later, which means you can deploy
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Django on any Java platform.
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This document will get you up and running with Django on top of Jython.
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.. _jython: http://jython.org/
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Installing Jython
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=================
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Django works with Jython versions 2.5 and higher.
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.. warning::
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As of the writing of this document, a version of Jython compatible with
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Django has not yet been released. The forthcoming 2.5a2+ release will be be
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the first in which Django will work out of the box.
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In the meantime, you'll need to use the latest development version of Jython
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obtained from Jython's SVN repository.
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Download Jython at http://jython.org/.
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Creating a servlet container
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============================
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If you just want to experiment with Django, skip ahead to the next section;
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Django includes a lightweight Web server you can use for testing, so you won't
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need to set up anything else until you're ready to deploy Django in production.
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If you want to use Django on a production site, use a Java servlet container,
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such as `Apache Tomcat`_. Full JavaEE applications servers such as `GlassFish`_
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or `JBoss`_ are also OK, if you need the extra features they include.
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.. _`Apache Tomcat`: http://tomcat.apache.org/
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.. _GlassFish: https://glassfish.dev.java.net/
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.. _JBoss: http://www.jboss.org/
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Installing Django
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=================
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The next step is to install Django itself. This is exactly the same as
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installing Django on standard Python, so see
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:ref:`removing-old-versions-of-django` and :ref:`install-django-code` for
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instructions.
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Installing Jython platform support libraries
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============================================
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The `django-jython`_ project contains database backends and management commands
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for Django/Jython development. Note that the builtin Django backends won't work
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on top of Jython.
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.. _`django-jython`: http://code.google.com/p/django-jython/
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To install it, follow the `installation instructions`_ detailed on the project
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website. Also, read the `database backends`_ documentation there.
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.. _`installation instructions`: http://code.google.com/p/django-jython/wiki/Install
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.. _`database backends`: http://code.google.com/p/django-jython/wiki/DatabaseBackends
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Differences with Django on Jython
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=================================
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.. index:: JYTHONPATH
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At this point, Django on Jython should behave nearly identically to Django
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running on standard Python. However, are a few differences to keep in mind:
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* Remember to use the ``jython`` command instead of ``python``. The
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documentation uses ``python`` for consistancy, but if you're using Jython
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you'll want to mentally replace ``python`` with ``jython`` every time it
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occurs.
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* Similarly, you'll need to use the ``JYTHONPATH`` environment variable
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instead of ``PYTHONPATH``.
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