Fix a bug if you have no roles at all This could not happen currently, but might happen later on if a group is defined that does not have an 'anybody' membership. Patch by: Sverre Rabbelier

from query import *
from subqueries import *
from where import AND, OR
from datastructures import EmptyResultSet

__all__ = ['Query', 'AND', 'OR', 'EmptyResultSet']