Re: java.lang.NoClassDefFoundError: org/python/parser/ast/VisitorBase

You're right the parser/ast isn't being packaged, which would explain 
the problem.  It suggest (to me) that Jythonc isn't picking this up 
correctly.

I've tried specifying this using the '-A' command with jythonc

jythonc -all -A org.python.parser.ast .......

I've also tried org.python.parser.* and org.python.parser.ast.* - 
although I admit, I'm just hacking around and hoping for the best!

Searching through the generated Java the line the bombs out is in 
jythonGui.java, built from jythonGui.py:

Py.runMain(jythonGui._PyInner.class, newargs, jythonGui.jpy$packages, 
jythonGui.jpy$mainProperties, "", new String[] {"string", "random", 
"traceback", "sre_compile", "atexit", "warnings", "popen2", "getopt", 
"sre", "sre_constants", "StringIO", "jythonGui", "javaos", "repr", 
"copy_reg", "re", "linecache", "javapath", "UserDict", "copy", 
"threading", "stat", "javashell", "sre_parse"});

The odd thing is a very similar application built by jythonc I have 
produces almost identical code - here Gui.java built from Gui.py:

Py.runMain(Gui._PyInner.class, newargs, Gui.jpy$packages, 
Gui.jpy$mainProperties, "", new String[] {"string", "random", 
"traceback", "sre_compile", "atexit", "warnings", "popen2", "getopt", 
"sre", "sre_constants", "StringIO", "javaos", "repr", "copy_reg", "re", 
"linecache", "javapath", "UserDict", "copy", "threading", "stat", "Gui", 
"javashell", "sre_parse"});

This other jar doesn't contain any referances to parser/ast either - in 
fact both only include referances to org.python.core and 
org.python.modules.  Yet one works and one doesn't.

The only discernable diferance is the order of the String array.  
'jythonGui' appears earlier than 'Gui' in the second array - these are 
then names of my main classes in the respective applications.

Of course the programs arn't identical so this could all be hearsay.  
But they use the same menu classes I wrote and only differ in the Swing 
components put onto their respective GUIs.

I guess the way forward (unless anyone has any better solutions), is to 
manually compile parser/ast from the source included in jython and 
manually add it to the final package.  Does anyone know if this is 
striaghtforward to do?  I'm all ears if anyone has a better suggestions!

Thanks for all the pointers so far,

Phil.

Oti wrote:

> What org.python.* packages are inside of myjar.jar ? If parser/ast is
> in there, we are not seeing the correct error message.
> I believe we had a discussion about this problem already, but I can't
> find it at the moment.
>
> sorry, no further ideas,
> Oti.
>
>
> On 3/30/06, Phil <phil.beadling@xxxxxxxxxxxxxxxx> wrote:
>  
>
> > Hi Oti,
> >
> > After creating the jar using:
> >
> > jythonc --all --jar myjar.jar mygui.py
> >
> > I run:
> >
> > java -jar myjar.jar
> >
> > However if run:
> >
> > jython mygui.py
> >
> > It works fine.
> >
> > The jar method works for several other very similar apps I've written,
> > I've just gone back and tried these with the same environment settings -
> > these work fine.  With my current app no errors are reported until
> > execution (as below) and only when built into class files and packaged
> > into a jar.  Any ideas?
> >    
>
>
>  



-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642