Ticket #17294: timezone.py.patch

django/utils/timezone.py

@@ -235 +235 @@
     The logic is described in Python's docs:
     http://docs.python.org/library/datetime.html#datetime.tzinfo
     """
-    return value.tzinfo is not None and value.tzinfo.utcoffset(value) is not None
+    if value is not None:
+        return value.tzinfo is not None and value.tzinfo.utcoffset(value) is not None
+    else:
+        return False
 
 def is_naive(value):
     """
@@ -244 +247 @@
     The logic is described in Python's docs:
     http://docs.python.org/library/datetime.html#datetime.tzinfo
     """
-    return value.tzinfo is None or value.tzinfo.utcoffset(value) is None
+    if value is not None:
+        return value.tzinfo is None or value.tzinfo.utcoffset(value) is None
+    else:
+        return False
 
 def make_aware(value, timezone):
     """