Added missing Attribute import to philo.utils.entities.

diff --git a/philo/utils/entities.py b/philo/utils/entities.py
index b911451..05e41fc 100644 (file)
--- a/philo/utils/entities.py
+++ b/philo/utils/entities.py
@@ -117,6 +117,7 @@ class LazyAttributeMapperMixin(object):
                return self.get_attributes().get(key=key)
        
        def _add_to_cache(self, key):
+               from philo.models.base import Attribute
                try:
                        attr = self._raw_get_attribute(key)
                except Attribute.DoesNotExist: