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problems with PythonInterpreter class from Java

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For some reason I am having problems using the PythonInterpreter class whenIattempt to embed Jython.  There are no errors whatsoever when I compile,butwhen I attempt to run it, I get this:Exception in thread "main"java.lang.NullPointerException        atorg.python.core.PyJavaClass.lookup(PyJavaClass.java:39)        atorg.python.core.PyObject.<init>(PyObject.java:46)        atorg.python.core.PySingleton.<init>(PySingleton.java:8)        atorg.python.core.PyNone.<init>(PyNone.java:7)        atorg.python.core.PySystemState.initStaticFields(PySystemState.java:34)        atorg.python.core.PySystemState.initialize(PySystemState.java:320)        atorg.python.core.PySystemState.initialize(PySystemState.java:294)        atorg.python.core.PySystemState.initialize(PySystemState.java:287)        atorg.python.util.PythonInterpreter.<init>(PythonInterpreter.java:61)        atorg.python.util.PythonInterpreter.<init>(PythonInterpreter.java:45)        atSimpleEmbedded.main(SimpleEmbedded.java:6)Line 6 in SimpleEmbedded.java iswhere the PythonIntepreter variable isinitialized.  This occurred when tryingto run the embed demo that comes withJython.  I am using the 1.3 SDK from Sun,and Jython-2.0.  Any ideas?Thanks,-Ryan

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