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  * Jython uses the py files Python's standard library where possible. This means you will need a working copy of Python source files for the stdlib. The trunk uses Python 2.2 so you can grab the files from the source distribution [http://www.python.org/download/releases/2.2.3/ here] if you don't already have 2.2 installed. If you're going to work on the 2.3 branch, you'll want the release from [http://www.python.org/download/releases/2.3.6/ here].  Jython uses the py files Python's standard library where possible. This means you will need a working copy of Python source files for the stdlib. The trunk uses Python 2.2 so you can grab the files from the source distribution [http://www.python.org/download/releases/2.2.3/ here] if you don't already have 2.2 installed. If you're going to work on the 2.3 branch, you'll want the release from [http://www.python.org/download/releases/2.3.6/ here].

BrianZimmer, incept: 2005-01-31

This is an introduction to developing Jython, just to get someone started. It doesn't cover the source code in any depth or discuss the design behind Jython. It's purely aimed at getting a development environment set up. It's definitely not complete so feel free to make it better!

SVN

Python

Ant

  • http://ant.apache.org/ A Java-based build tool.

  • Eclipse users, see [wiki:/JythonDeveloperGuide/EclipseNotes Eclipse ANT notes]

  • The Makefiles in the repository are old and will be removed.
  • Download the latest version and install so the bin/ is somewhere in your path.
  • The build.xml is the file containing the compiler directives
  • It uses a file called ant.properties to override default paths; here's mine:
    •     build.compiler=modern
          debug=on
          optimize=off
      
          javaccHome=/Users/bzimmer/Library/Java/Extras/javacc-3.2
      
          ht2html.dir=
          #python.home=
          python.lib=/sw/lib/python2.2
          python.exe=/sw/bin/python2.2
      
          ### zxJDBC ###
          oracle.jar=
          mysql.jar=/Users/bzimmer/Library/Java/Extras/mysql-connector-java-3.1.6-bin.jar
          informix.jar=
          postgresql.jar=/Users/bzimmer/Library/Java/Extras/pg74.215.jdbc2.jar
          jdbc.jar=
          servlet.jar=
  • ant.properties for Gentoo users:
    •     build.compiler=modern
          debug=on
          optimize=off
      
          python.lib=/usr/lib/python2.2/lib-old
  • After getting Ant setup, run ant in your Jython checkout directory. That should produce dist/jython.jar if everything is setup correctly.

Tests

  • After you've built the project, you may want to set up an excutable file on your path to make it easy to launch your build of jython. This file will need to:
  • Set the python home property to the dist directory of your build (otherwise, you'll get import errors on the standard lib stuff).

  • Execute the jython.jar in the dist produced by the build.

Here's a batch file that runs the built jython.jar (for windows): Anchor(sampleBatch)

:: jytip.bat
@echo off
set ARGS=

:: concatenate all the command line args into one
:loop
if [%1] == [] goto end
        set ARGS=%ARGS% %1
        shift
        goto loop
:end

:: this is mine...
:: java -Dpython.home=C:\\workspace\\JythonTip\\jython\\dist -jar 
::<cont> c:\workspace\JythonTip\jython\dist\jython.jar %ARGS%
:: fill in <placeholders> below:
java -Dpython.home=<path to dist directory>\\dist -jar <path to dist directory>\dist\jython.jar %ARGS%

On Unix you can use a shell script:

exec java -Dpython.home=<path>/dist/ -jar <path>/dist/jython.jar $*

Now you're ready to run tests...

  • There are a couple different places to find test cases
  • Run a particular test or you can run the whole Python tes tsuite by running dist/Lib/regrtest.py with the -a option

Directory layout Note the following describes the current trunk. If you are working from an older tag, src doesn't exist and src/com and src/org are moved up a level.

  • src/com : zxJDBC related sources"
  • Demo : demo sources for the website and such"
  • Doc : the website documentation(the current website actually lives in https://svn.sourceforge.net/svnroot/jython/trunk/website)"

  • Lib : the python source files for Jython standard library implementations
  • Lib/test : test cases
  • Misc : random scripts which are not all used; some generate source
  • src/org : top level package for python and apache (used for regex)
  • Tools : JythonC and Freeze

Coding Guidance

Other Stuff

JythonDeveloperGuide (last edited 2014-07-26 16:06:40 by HenningJacobs)