[Zope] Resouce not found can't be caught

[Thomas Guettler]

Hi!

The resource not found exception can't be caught. I tried the
following:

    def unitTest(self, REQUEST):
        "docstring"
        try:
            self._unitTest(REQUEST)
        except:
            import traceback
            traceback.print_exc()

But I get the meaningless page:
 """
 Site Error
 An error was encountered while publishing this resource.
 Resource not found
 Sorry, the requested resource does not exist.
 Check the URL and try again.
 Resource: QWERTZUIOP GET
 """

Why is the exception in _unitTest not caught by my exception handler? 
I would like to have a stacktrace.

Yesterday I had a related strange behaviour: 
 raise AssertionError
behaved different than
 assert(0)

the first was ignored, while the second did print the stacktrace (With
<dtml-var error_tb> in standard_error_message)
 
 thomas

-- 
Thomas Guettler <guettli@thomas-guettler.de>
http://www.thomas-guettler.de