Re: [Jython-users] Stuck on standard imports

[Michael L. <mic...@gm...>]

Even simpler - this seems to work:

System.setProperty("python.path", "path/to/jythonlib.jar/Lib");

Mike

On 3/28/07, Leo User <leo...@ya...> wrote:
>
> Wow,
>
> that looks amazingly simple, Ill have to see if it
> works for me and maybe I can ditch the special
> importer Ive been using.
>
> thanks!
> leouser
>
> --- Stefan Dupont-Christ <sd...@gi...> wrote:
>
> > This is the way it worked for me:
> >
> > 1. after jar-ing up the Lib/ directory, it looks
> > like this:
> >
> > > jar -tf jython-lib.jar
> > META-INF/
> > META-INF/MANIFEST.MF
> > Lib/email/base64MIME.py
> > Lib/email/Charset.py
> > Lib/email/_compat21.py
> > Lib/email/_compat22.py
> > Lib/email/Encoders.py
> > Lib/email/Errors.py
> > [...]
> >
> > 2. jython-lib.jar needs to be in the CLASSPATH
> >
> > 3. in jython script I use:
> >
> > import sys
> >
> sys.packageManager.addJar("<path_to>/jython-lib.jar",
> > 1)
> > if not "<path_to>/jython-lib.jar/Lib" in sys.path:
> > sys.path.append("<path_to>/jython-lib.jar/Lib")
> >
> > # now this should work
> > import string, os
> >
> > Hope this helps
> >
> > --Stefan
> >
> > Michael Litherland wrote:
> >
> > > Hi,
> > >
> > > I've searched the documentation and the list
> > archives as well as I
> > > could and
> > > though I've seen somewhat similar queries I
> > haven't found any
> > > solutions yet.
> > >
> > > I'm developing a Java application that needs to be
> > easily
> > > distributable and
> > > doesn't require anything installed on the host
> > system except Java 1.5 or
> > > newer.  The Jython interpreter is embedded and
> > used to validate and test
> > > Jython code that the user can enter through the
> > swing interface.  It
> > > works
> > > great right up until the user tries something
> > like:
> > >
> > > import string
> > > import re
> > > #...
> > >
> > > Of course the issue is that when Jython is
> > installed it know where the
> > > Lib
> > > directory is, but installing the Jython
> > distribution on any of the host
> > > machines is not an option (in fact this app will
> > almost certainly only be
> > > able to run as an applet or webstart).
> > >
> > > I've tried tricks like jarring up the Lib/
> > directory and adding it to the
> > > classpath which I should have guessed won't
> > automagically work.  In the
> > > Jython API the PathPackageManager looks promising,
> > but I admit that I
> > > can't
> > > figure out how it ties into the interpreter.  It
> > also appears that
> > > python.path can help me out, but I don't think
> > that just including the
> > > Lib
> > > dir and all those files is a very good solution
> > (maybe not even possible
> > > with webstart and applet).
> > >
> > > I don't mind interrogating a jar file containing
> > all of the necessary
> > > source
> > > and fiddling with JarEntries and that fun stuff if
> > there's a way that
> > > I can
> > > get access to the Jython standard imports in a Jar
> > file.  I'm just hoping
> > > someone's either done it before or can point me in
> > the right direction in
> > > the API docs.  It seems to me, also, that being
> > able to distribute the
> > > Lib
> > > stuff in a jar would make a lot of people's lives
> > easier.
> > >
> > > Thanks,
> > > Mike
> > >
> >
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> > --
> >
> > Stefan Dupont-Christ
> > _________________
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