3 files changed, 5 insertions, 8 deletions
diff --git a/django/contrib/postgres/fields/array.py b/django/contrib/postgres/fields/array.py
index af575c6b30..8e442c4a7a 100644
--- a/django/contrib/postgres/fields/array.py
+++ b/django/contrib/postgres/fields/array.py
@@ -4,11 +4,10 @@ from django.contrib.postgres import lookups
 from django.contrib.postgres.forms import SimpleArrayField
 from django.contrib.postgres.validators import ArrayMaxLengthValidator
 from django.core import checks, exceptions
-from django.db.models import Field, Transform, IntegerField
+from django.db.models import Field, IntegerField, Transform
 from django.utils import six
 from django.utils.translation import string_concat, ugettext_lazy as _
 
-
 __all__ = ['ArrayField']
 
 
diff --git a/django/contrib/postgres/fields/hstore.py b/django/contrib/postgres/fields/hstore.py
index 1524368ecf..461fa047e2 100644
--- a/django/contrib/postgres/fields/hstore.py
+++ b/django/contrib/postgres/fields/hstore.py
@@ -3,11 +3,10 @@ import json
 from django.contrib.postgres import forms, lookups
 from django.contrib.postgres.fields.array import ArrayField
 from django.core import exceptions
-from django.db.models import Field, Transform, TextField
+from django.db.models import Field, TextField, Transform
 from django.utils import six
 from django.utils.translation import ugettext_lazy as _
 
-
 __all__ = ['HStoreField']
 
 
diff --git a/django/contrib/postgres/fields/ranges.py b/django/contrib/postgres/fields/ranges.py
index 8cb5229593..679e87f44e 100644
--- a/django/contrib/postgres/fields/ranges.py
+++ b/django/contrib/postgres/fields/ranges.py
@@ -1,12 +1,11 @@
 import json
 
-from django.contrib.postgres import lookups, forms
+from psycopg2.extras import DateRange, DateTimeTZRange, NumericRange, Range
+
+from django.contrib.postgres import forms, lookups
 from django.db import models
 from django.utils import six
 
-from psycopg2.extras import Range, NumericRange, DateRange, DateTimeTZRange
-
-
 __all__ = [
     'RangeField', 'IntegerRangeField', 'BigIntegerRangeField',
     'FloatRangeField', 'DateTimeRangeField', 'DateRangeField',