[kepler-users] Python execution within the Kepler Python actor...

[Christopher Brooks]

Hi Marc,

On 11/4/11 2:09 PM, J. Marc Edwards wrote:
> I need a little help in integrating my Jython/Python code into the 
> Python actor.
>
> When I double-click on the Python actor in the PythonDialogExample, a 
> window with the Python code appears.  I can of course edit the code 
> from within this window.  However, I want to perform my code 
> development and editing from within my Eclipse environment from my 
> Kepler development build.
I don't know that much about Python, but I believe that you could use 
the Python import facility to find imports.
I just added text to the Kepler Jython page about this, see:
https://kepler-project.org/developers/reference/python-and-kepler#how-jython-finds-imports

Note that I found a few other references on the web, included what 
appears to be people who are using the full version of Python (not 
Jython) with Kepler.
> When I "open the actor", the beginning of the file has some Javadoc as 
> well as what appear to be some unmatched XML elements (<p>), along 
> with some matching XML element tags (</pre>) (does this correspond to 
> some pre-fire method?).
When you open the actor, you are seeing the Java code that implements 
the PythonActor.  The <p> tags are html tags used in the javadoc 
comments of the Java file.  All of the instances of the PythonActor 
share the same Java code, but may have different Python code.
> After this all of the Java code for the actor follows with the 
> standard initialize(), stop(), stopFire(), preinitialize(), 
> terminate(), etc, methods.
>
> I do see in the Java code where there is a PythonScript method that 
> accepts a CompositeEntity where a script template is provided where I 
> am supposing a long Python string in the script.setExpression is defined.
>
> However, what I would like to do is simply include my Jython module 
> within my Kepler build and debug my Jython code in connection with my 
> overall workflow.
>
> Can someone tell me how to go about achieving this objective?
It looks like Jython uses sys.path to find imports.  I included a 
Ptolemy II model that opens in the devel version of Kepler that lists 
the contents of sys.path.  For further information about sys.path, see

http://jythonpodcast.hostjava.net/jythonbook/en/1.0/ModulesPackages.html

_Christopher
>
> Thanks, Marc
> -- 
>
> J. Marc Edwards
> Lead Architect - Semiconductor Design Portals
> Nimbis Services, Inc.
> Skype: (919) 747-3775
> Cell:  (919) 345-1021
> Fax:   (919) 882-8602
> marc.edwards at nimbisservices.com
> www.nimbisservices.com
>
>
>
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-- 
Christopher Brooks, PMP                       University of California
CHESS Executive Director                      US Mail: 337 Cory Hall
Programmer/Analyst CHESS/Ptolemy/Trust        Berkeley, CA 94720-1774
ph: 510.643.9841                                (Office: 545Q Cory)
home: (F-Tu) 707.665.0131 cell: 707.332.0670

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