diff --git a/example2/polls/models.py b/example2/polls/models.py
index e13ba3d..a400ed9 100644
--- a/example2/polls/models.py
+++ b/example2/polls/models.py
@@ -1,4 +1,7 @@
+import datetime
+
 from django.db import models
+from django.utils import timezone
 
 
 class Poll(models.Model):