error if other user deletes resources

[Ferdinand]

found while deleting analytic accounts.
one user is watching search results
other user deletes some resources

Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/Koo/Rpc/Rpc.py", line 151, in call
    result = self.singleCall( obj, method, *args )
  File "/usr/lib/python2.6/site-packages/Koo/Rpc/Rpc.py", line 140, in singleCall
    result = self.proxy.dispatch( obj[1:], method, self.databaseName, self.uid, self.password, *encodedArgs )
  File "/usr/lib64/python2.6/site-packages/Pyro/core.py", line 384, in __call__
    return self.__send(self.__name, args, kwargs)
  File "/usr/lib64/python2.6/site-packages/Pyro/core.py", line 459, in _invokePYRO
    return self.adapter.remoteInvocation(name, Pyro.constants.RIF_VarargsAndKeywords, vargs, kargs)
  File "/usr/lib64/python2.6/site-packages/Pyro/protocol.py", line 439, in remoteInvocation
    return self._remoteInvocation(method, flags, *args)
  File "/usr/lib64/python2.6/site-packages/Pyro/protocol.py", line 464, in _remoteInvocation
    answer = pickle.loads(answer)
AttributeError: 'module' object has no attribute 'ProgrammingError'