Re: using jython

• To: Tom Whittaker <tomw@xxxxxxxxxxxxx>
• Subject: Re: using jython
• From: "Stephen C. Upton" <upton@xxxxxxxxx>
• Date: Mon, 30 Jul 2001 20:48:07 -0400

Hi (again) Tom,

I guess the ghost is in my machine!! I attempted to run it again, and it
works!! I did however, in between, install a newer version of Java3D,
but can't imagine how that has influenced the problem.

thanks again
steve

"Stephen C. Upton" wrote:
> 
> Hi Tom,
> 
> I did try this with an earlier version (around Jan 2001, I think). I
> attempted with the newest versions and got the same error. I also
> downloaded your prepackaged stuff, but haven't installed it yet. Since
> it appears the problem wasn't an obvious one, I'll dig around some more.
> I am glad to see that Attempt #2 should at least work ... :-(
> 
> Thanks for the quick response.
> 
> steve
> 
> Tom Whittaker wrote:
> >
> > Hi Steve...
> >
> > On the surface, this sure looks like a classpath problem.  But...it also 
> > looks
> > like you've covered all the bases.  I could simulate the same error 
> > condition
> > by first clearing my CLASSPATH environment variable, and then running your
> > "Attemp #1" (no explicit pointer to jython.jar).
> >
> > However, when I ran something like your Attempt #2:
> >
> > java -cp .;d:\src\visad.jar;d:\java\jython\jython.jar 
> > visad.python.JPythonFrame
> >
> > I got a "normal" start-up of the editor.  Since you've apparently also tried
> > this setting CLASSPATH in the environment and then just running, "java
> > visad.python.JPythonFrame", there must be some other problem...
> >
> > I notice that Curtis made some changes in this area last month, so perhaps 
> > you
> > could test with an earlier version?  I put together a "VisAD pre-packaged 
> > for
> > Windows" file in May, which is found at:
> > <http://www.ssec.wisc.edu/~tomw/visadtutor/jyvis.exe>
> >
> > that I'd ask you to download and unpack it into a NEW directory and see if 
> > this
> > works for you. (Sorry it's large - it's a complete JRE/VisAD/Jython/Java3D
> > collection...).  That will help.
> >
> > Thanks.
> >
> > tom
> >
> > "Stephen C. Upton" wrote:
> > >
> > > I am attempting to run the JPythonEditor as described in the
> > > jython-visad tutorial under the section entitled "The
> > > visad.python.JPythonEditor"
> > >
> > > I get these errors when attempting to run from the command line as
> > > indicated. I haven't peeked at the source yet, just wondering if anyone
> > > else is having these types of problems (I believe they are very simple
> > > errors). I have jython.jar in my classpath, and even running with the
> > > explicit classpath as indicated in #2 below, JPythonFrame is not finding
> > > the jython stuff. I can run jython from the command line, and I can run
> > > the visad.python stuff from the jython prompt, e.g., the plot example.
> > >
> > > Attempt #1
> > > C:\visad>java -cp visad.jar visad.python.JPythonFrame
> > > visad.VisADException: JPython library not found
> > >         at visad.python.JPythonEditor.<init>(JPythonEditor.java:114)
> > >         at visad.python.JPythonFrame.<init>(JPythonFrame.java:43)
> > >         at visad.python.JPythonFrame.<init>(JPythonFrame.java:38)
> > >         at visad.python.JPythonFrame.main(JPythonFrame.java:54)
> > >
> > > Attempt #2
> > > C:\visad>java -cp .;visad.jar;c:\jython-2.0\jython.jar
> > > visad.python.JPythonFrame
> > > visad.VisADException: JPython library not found
> > >         at visad.python.JPythonEditor.<init>(JPythonEditor.java:114)
> > >         at visad.python.JPythonFrame.<init>(JPythonFrame.java:43)
> > >         at visad.python.JPythonFrame.<init>(JPythonFrame.java:38)
> > >         at visad.python.JPythonFrame.main(JPythonFrame.java:54)
> > >
> > > thanx
> > > steve upton
> > >
> > > BTW, GREAT STUFF!!
> >
> > --
> > Tom Whittaker (tomw@xxxxxxxxxxxxx)
> > University of Wisconsin-Madison
> > Space Science and Engineering Center
> > Phone/VoiceMail: 608/262-2759
> > Fax: 608/262-5974

• References:
  • using jython
    • From: Stephen C. Upton
  • Re: using jython
    • From: Tom Whittaker
  • Re: using jython
    • From: Stephen C. Upton