Auto-reload fails on Echo PyServlet

I apologize in advance; I'm a newbie (and more than a bit clueless
about how PyServlet works).

I've written a tiny python script served by PyServlet that uses the
supremely useful Echo framework (echo.sf.net). It works, but, for some
reason, it doesn't have the ultra-cool reloads-when-you-make-changes
feature of the other "hello world" PyServlets I've played with.

In other words, I've created the "hello world" servlet described here:
http://seanmcgrath.blogspot.com/JythonWebAppTutorialPart1.html
(specifically, JythonServlet1.py), and the servlet reflects changes as
soon as I save the .py file. But with the Echo servlet I've written, I
have to restart Tomcat for changes to show up. 

Here 'tis:
--- cut here --- JythonServletEchoTest.py --- cut here ---
from nextapp.echo2.webcontainer import WebContainerServlet
import nextapp.echo2.app.ApplicationInstance
import nextapp.echo2.app.ContentPane
from nextapp.echo2.app import Extent
from nextapp.echo2.app import Label
from nextapp.echo2.app import Row
import nextapp.echo2.app.Window

class JythonServletEchoTest (WebContainerServlet):
    def newApplicationInstance(self):
        return TestApp()

class TestApp(nextapp.echo2.app.ApplicationInstance):
    def init(self):
        mainWindow = nextapp.echo2.app.Window()
        mainWindow.setTitle("Echo2+Jython Test")
        mainWindow.setContent(testPane())
        return mainWindow

class testPane(nextapp.echo2.app.ContentPane):
     def __init__(self):
         nextapp.echo2.app.ContentPane.__init__(self)
         self.add(Label("Hello world!"))
--- cut here --- JythonServletEchoTest.py --- cut here ---

WebContainerServlet is a subclass of HttpServlet, so I'd think this
should operate similarly to the JythonServlet1 example. But it
doesn't: if I change "Hello world!" to something else, I have to
restart Tomcat for the servlet to reflect that.

Obviously, it wouldn't be fair to ask for a solution (since this isn't
an Echo forum), but I'm curious if someone can give me an idea of
where to look in Jython/PyServlet to see why the auto-reload feature
isn't working. After all, PyServlet is processing the .py file --
surely, it must be involved, whether I pass the request to
HttpServlet, Echo's WebContainerServlet, or whatever. How it could
fail is the area where I'm curious.

I'm using tomcat 4.1, debian unstable, java version "1.4.2_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_06-b03)
Java HotSpot(TM) Client VM (build 1.4.2_06-b03, mixed mode)

Any suggestions would be much appreciated. thanks in advance!

--Joe



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