dep/django-selectable/selectable/exceptions.py

   1 class LookupAlreadyRegistered(Exception):
   2     "Exception when trying to register a lookup which is already registered."
   3
   4
   5 class LookupNotRegistered(Exception):
   6     "Exception when trying use a lookup which is not registered."
   7
   8
   9 class LookupInvalid(Exception):
  10     "Exception when register an invalid lookup class."