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-rw-r--r--django/db/models/sql/where.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/django/db/models/sql/where.py b/django/db/models/sql/where.py
index 754e33292d..42682c342e 100644
--- a/django/db/models/sql/where.py
+++ b/django/db/models/sql/where.py
@@ -4,7 +4,6 @@ Code to manage the creation and SQL rendering of 'where' constraints.
from __future__ import absolute_import
-import collections
import datetime
from itertools import repeat
@@ -12,6 +11,7 @@ from django.conf import settings
from django.db.models.fields import DateTimeField, Field
from django.db.models.sql.datastructures import EmptyResultSet, Empty
from django.db.models.sql.aggregates import Aggregate
+from django.utils.itercompat import is_iterator
from django.utils.six.moves import xrange
from django.utils import timezone
from django.utils import tree
@@ -58,7 +58,7 @@ class WhereNode(tree.Node):
if not isinstance(data, (list, tuple)):
return data
obj, lookup_type, value = data
- if isinstance(value, collections.Iterator):
+ if is_iterator(value):
# Consume any generators immediately, so that we can determine
# emptiness and transform any non-empty values correctly.
value = list(value)