Fixed #20746 -- Removed Python 2.6 specific code/docs

2 files changed, 4 insertions, 4 deletions

diff --git a/django/db/models/fields/__init__.py b/django/db/models/fields/__init__.py
index a7e0b52e87..ddc76fccf7 100644
--- a/django/db/models/fields/__init__.py
+++ b/django/db/models/fields/__init__.py
@@ -1,5 +1,6 @@
 from __future__ import unicode_literals
 
+import collections
 import copy
 import datetime
 import decimal
@@ -17,7 +18,6 @@ from django.core import exceptions, validators
 from django.utils.datastructures import DictWrapper
 from django.utils.dateparse import parse_date, parse_datetime, parse_time
 from django.utils.functional import curry, total_ordering
-from django.utils.itercompat import is_iterator
 from django.utils.text import capfirst
 from django.utils import timezone
 from django.utils.translation import ugettext_lazy as _
@@ -585,7 +585,7 @@ class Field(object):
         return bound_field_class(self, fieldmapping, original)
 
     def _get_choices(self):
-        if is_iterator(self._choices):
+        if isinstance(self._choices, collections.Iterator):
             choices, self._choices = tee(self._choices)
             return choices
         else:
diff --git a/django/db/models/sql/where.py b/django/db/models/sql/where.py
index 024b995c99..2e83ecdce4 100644
--- a/django/db/models/sql/where.py
+++ b/django/db/models/sql/where.py
@@ -4,6 +4,7 @@ Code to manage the creation and SQL rendering of 'where' constraints.
 
 from __future__ import absolute_import
 
+import collections
 import datetime
 from itertools import repeat
 
@@ -11,7 +12,6 @@ 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
@@ -61,7 +61,7 @@ class WhereNode(tree.Node):
         if not isinstance(data, (list, tuple)):
             return data
         obj, lookup_type, value = data
-        if is_iterator(value):
+        if isinstance(value, collections.Iterator):
             # Consume any generators immediately, so that we can determine
             # emptiness and transform any non-empty values correctly.
             value = list(value)