== Standalone mode - Libraries included ==

Jython has now a standalone mode, where the core part is all included in one single `jython.jar` file. This has two advantages:
 * simpler starting: `java -jar jython.jar`
 * simpler embedding: just put `jython.jar` onto your classpath. No setting of `python.home` nor `python.path` required.
This really adds a Plug & Play feature to Jython.

There is a preview available: [[http://homepage.sunrise.ch/mysunrise/ohumbel/2837/jython_snapshot.jar|snapshot build]], and an overview of the [[http://homepage.sunrise.ch/mysunrise/ohumbel/|test results]] 

A sample install and run session, after downloading `jython_snapshot.jar`:
{{{
[root@localhost downloads]# java -jar jython_snapshot.jar -s -d /tmp/jython_standalone -t standalone
Performing silent installation
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Packing standalone jython.jar ...
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Congratulations! You successfully installed Jython HEAD to directory /tmp/jython_standalone.

[root@localhost downloads]# cd /tmp/jython_standalone/
[root@localhost jython_standalone]# ls
jython.jar

[root@localhost jython_standalone]# java -jar jython.jar 
*sys-package-mgr*: processing new jar, '/tmp/jython_standalone/jython.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jre1.5.0_07/lib/rt.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jre1.5.0_07/lib/jsse.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jre1.5.0_07/lib/jce.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jre1.5.0_07/lib/charsets.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jre1.5.0_07/lib/ext/sunjce_provider.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jre1.5.0_07/lib/ext/localedata.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jre1.5.0_07/lib/ext/sunpkcs11.jar'
*sys-package-mgr*: processing new jar, '/usr/java/jre1.5.0_07/lib/ext/dnsns.jar'
Jython 2.2a1 on java1.5.0_07 (JIT: null)
Type "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/tmp/jython_standalone/.', '/tmp/jython_standalone/./Lib', '/tmp/jython_standalone/jython.jar/Lib']
>>> import getopt
>>> 
}}}

One Open issue: the cachedir problem still remains. If the directory containing `jython.jar` is not writable, no cachedir will help importing java classes. This is a well known problem also persistent in non-standalone mode. We try to improve this in standalone mode.