text: # -*- coding: utf-8 -*-
  from __future__ import absolute_import, unicode_literals
  
  import logging
  
  from django.core.exceptions import ObjectDoesNotExist
  from rest_framework.exceptions import ValidationError as DrfValidationError  # noqa
  
  logger = logging.getLogger(__name__)
  
  
  class ValueNotFound(ObjectDoesNotExist):
      pass
  
  
  class DataValueError(ValueError):
      pass
  