# make sure the rights given to the child are a subset of the
# parents rights
if not self.parent.get_privileges().is_superset(self.get_privileges()):
- raise ChildRightsNotSubsetOfParent(self.get_subject())
+ raise ChildRightsNotSubsetOfParent(self.get_subject() + " " + self.parent.get_privileges().save_to_string() + " " + self.get_privileges().save_to_string())
return