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Installation

Метки: python

To install Jython, go to http://jython.sourceforge.net.

Note

Select “test the beta”.

The download is a .class file, which will run an installer when you execute it using java -jar.

You also need the Java Development Kit (JDK), and to add jython-complete.jar to your Java CLASSPATH. As an example, here is the appropriate section in my .bashrc for *nix; for Windows you need to do the equivalent:

export set JYTHON_HOME="/Users/bruceeckel/jython2.5b0"
export set CLASSPATH=.:..:$JYTHON_HOME/jython-complete.jar

When you run Jython, you might get the warning: can't create package cache dir, '/cachedir/packages'. Jython will still work, but startup will be slower because caching isn’t happening. Jython caching requires /cachedir/packages/ in the python.home directory. It is often the case on *nix that users lack sufficient priveleges to create or write to this directory. Because the problem is merely permissions, something like mkdir cachedir; chmod a+rw cachedirwithin the Jython directory should eliminate this warning message.