private static final PythonInterpreter interpreter = new PythonInterpreter(null, new PySystemState());
    private static Pattern resourceUrlRE = Pattern.compile("file:(?<main>(\\/[A-Za-z0-9_\\- \\.()]+)+\\.jar)!(?<inner>(\\/[A-Za-z0-9_\\- \\.()]+)+)");

    static {
        PySystemState sys = Py.getSystemState();

        URL[] pythonPaths  = new URL[] {
            myLib.class.getResource("/jython"),
            myLib.class.getResource("/jython/site-packages")
        };

        for (URL p: pythonPaths) {
            String rsPath = p.getFile();
            Matcher jarMatcher = resourceUrlRE.matcher(rsPath);

            if (jarMatcher.matches()) {
                String pypath = jarMatcher.group("main") + jarMatcher.group("inner");
                System.out.println(pypath);
                addPaths(sys.path, pypath);
            }
            else {
                System.out.println(rsPath);
                addPaths(sys.path, rsPath);
            }
        }
    }

    private static void addPaths(PyList path, String pypath) {
        StringTokenizer tok = new StringTokenizer(pypath,
                                                  java.io.File.pathSeparator);
        while  (tok.hasMoreTokens())
            path.append(new PyString(tok.nextToken().trim()));
    }