[Jython-users] Java Web Start launched application and Jython libraries

[John M. <joh...@ho...>]

I've got an application that is run from Java Web Start (or any JNLP 
launcher). Because it is run from a JNLP file it has to come in the form of 
one or more jar files. Recently I added IBM's Bean Scripting Framework (BSF) 
and Jython as one of the languages so I now include bsf.jar and jython.jar 
with my application. So far, so good...

But if I run a script that does something like:

from pawt import swing
I get an error because it doesn't know what pawt is, I assume I would get 
the same error using any of the various Python modules. This is hardly 
surprising though as I didn't include the library it needed. Unfortunately, 
my crude attempt to add the library by turning the Lib directory from 
jython-2.1a3 into a Lib.jar file did not work. It still doesn't find pawt 
even when I just run the BSF from the command line like so:

C:\Program Files\jython-2.1a3\Demo\swing>java com.ibm.bsf.Main -in simple.py 
-mode exec

Traceback (innermost last):
  File "<string>", line 7, in ?
ImportError: no module named pawt
exception from Jython: Traceback (innermost last):
  File "<string>", line 7, in ?
ImportError: no module named pawt
: Traceback (innermost last):
  File "<string>", line 7, in ?
ImportError: no module named pawt
The classpath in this case included bsf.jar, jython.jar, and the Lib.jar I 
made. It was capable of running another example from the BSF examples that 
only used the awt and didn't need pawt.

Question 1: Is there a way to create a jar I can include with my 
distribution that I can include in my classpath and jython will find its 
library files within it? I did get a message from the jython runtime telling 
me it was "processing" (or something like that) Lib.jar the first time I ran 
this command with Lib.jar in the classpath but I still got the error seen 
above.

Question 2: Shouldn't there be a way to do this AND shouldn't the jar be 
provided by default or a way to create it be provided? Distribution of 
jython with other applications is hardly an unusual thing.

Thanks very much,

John Munsch
http://www.johnmunsch.com

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