Re: [Jython-users] CLASSPATH problem

[Kevin M. <kev...@er...>]

Hi,

thanks for the input. However, ...

test1.py:
---------
class gofaster:
	def __init__(self):
		print "Zoom"
gofaster()


Compile:
--------
# jythonc -a -p com.ericsson.test1 -j test1.jar test1.py

Test:
-----
# java -cp test1.jar com.ericsson.test1.test1
Zoom



test2.py:
---------
import sys
sys.add_package("com.ericcson.test1")
from com.ericsson.test1 import test1

Compile:
--------
# jythonc -a -p com.ericsson.test2 -j test2.jar test2.py


MyManifest.txt:
--------------
Class-Path: test1.jar


Update Jar file:
----------------
# jar -umf MyManifest test2.jar


Test:
-----
# java -jar test2.jar
Java Traceback:

	at org.python.core.Py.ImportError(Py.java:180)
	at org.python.core.imp.dottedFind(imp.java:414)
	at org.python.core.imp.importName(imp.java:436)
	at org.python.core.imp.importName(imp.java:509)
	at org.python.core.ImportFunction.load(__builtin__.java:967)
	at org.python.core.ImportFunction.__call__(__builtin__.java:961)
	at org.python.core.PyObject.__call__(PyObject.java:250)
	at org.python.core.__builtin__.__import__(__builtin__.java:921)
	at org.python.core.imp.importOne(imp.java:518)
	at com.ericsson.test1.test1$_PyInner.main$1(test1.java:36)
	at com.ericsson.test1.test1$_PyInner.call_function(test1.java:28)
	at org.python.core.PyTableCode.call(PyTableCode.java:155)
	at org.python.core.imp.createFromCode(imp.java:157)
	at org.python.core.Py.runMain(Py.java:798)
	at com.ericsson.test1.test1.main(test1.java:54)
Traceback (innermost last):
  File "/home/qkename/jwork/extdirstest/test2.py", line 0, in main
ImportError: No module named ericsson


Result:
-------
The sys.add_package() workaround doesn't work. I wonder how this should
work since if as you say, Jython doesn't read the Class-Path field, then
it won't be able to find the jar file in the first place.

As for the patch. How should this be applied? I did not see any
instructions on the webpage about how to do this.
Does the workaround above have to be used together with the patch?


Much appreciated,
Kevin



> Hi
>
> [kevin.mcnamee]
> > test2.py:
> > ---------
> > from com.ericsson.test1 import *
> > test1.main([""])      #              <--- C style???
>
> test1 has no main function defined, OTOH
> the top level statements of a module are executed on importing
> so no need for that.
>
> from.com.ericsson.test1 import *
>
> import * from a java package should not be used in production code,
> in particular its support through jythonc is quite fragile,
> and does not work with the 1st workaround proposed in the previous
> message , I don't rembember for the patch ...
>
> so a possible test2 is:
>
> import sys
> sys.add_package("com.ericcson.test1")
> from com.ericsson.test1 import test1
> # ^ executes the top-level stmts in test1.py
>
> regards.
>
>
>
>
>

_________________________________________________
Name/Title : Kevin McNamee, Software Consultant
Phone      : +46 13 32 1165