Re: [Jython-users] Packaging .py inside a jar with jython 2.5.1

[Nathan P. <npa...@cl...>]

ugh, shamefacedly I must admit that I totally missed the plot on the 
python side.  I had neglected to make my python object a subclass of the 
FooType thing, i.e. I was doing:

class Foo:

where I should have been doing

class Foo(FooType):

with the necessary foregoing import of the FooType interface.

now that this is wired up properly, I'm back in the realm of more 
understandable debugging.


Nathan Parrish wrote:
> just joined this list, and responding to the following message from the 
> archives, sorry the threading will be all messed up:
> From: Ian Kallen <spidaman.list@gm...> - 2010-04-25 06:09
>> Does anybody have advice as to how to run python scripts packaged inside a
>> jython 2.5.1 jar? I tried building a jar as described here
>> http://wiki.python.org/jython/JythonFaq/DistributingJythonScripts#Runthescript.2BAC8-jar...
>> a jar with jython, + Lib, + my own .py but that doesn't work. Are
>> those docs only applicable to jython 2.2 ? If so, how are folks working with
>> 2.5.1? Creating class files with clamp?
>> pointers appreciated,
>> -Ian
>>
> 
> 
> this is probably a bit blind-leading-the-blind, but I'm also beginning 
> to work on utilizing jython code within a java service.  it sounds like 
> the preferred method (vs. 2.2-era jythonc approach) is the object 
> factory approach, described at 
> http://wiki.python.org/jython/JythonFaq/EmbeddingJython
> 
> I believe that using this approach and adding your .py files to a 
> standalone .jython jar (built by the installer) ought to work.  the 
> added advantage, to my mind, is that you can tweak your python code 
> without recompiling; this is in fact my main motivation for 
> incorporating jython into my project -- my python development goes about 
> 10X faster than java, certainly reflective of my relative prowess or 
> general abilities, but a fact nonetheless.
> 
> however I am currently encountering a problem with this approach, 
> although I'm not yet at the point of embedding my python in the jar, but 
> instead explicitly pointing sys.path to where my scripts live.
> 
> my current hurdle is that where I call the __tojava__ method and cast to 
> the fooType thing in the create() method, I get the exception:
> java.lang.ClassCastException: org.python.core.PySingleton cannot be cast 
> to com.sproutsys.qa.staf.TestopiaRPCType
> 
> this is with jython 2.5.1 on jdk 1.6.0_14 (to which I'm in no way 
> married).
> 
> hope this is helpful for Ian, and I'm appreciative of any hints on how 
> to get over my current hump.
> 
> thanks,
> nathan
> 
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