diff --git a/django/contrib/gis/measure.py b/django/contrib/gis/measure.py
index 52fdf874ca..0981c7e09b 100644
--- a/django/contrib/gis/measure.py
+++ b/django/contrib/gis/measure.py
@@ -35,12 +35,13 @@ Authors: Robert Coup, Justin Bronn, Riccardo Di Virgilio
 Inspired by GeoPy (http://exogen.case.edu/projects/geopy/)
 and Geoff Biggs' PhD work on dimensioned units for robotics.
 """
-__all__ = ['A', 'Area', 'D', 'Distance']
 from decimal import Decimal
 from functools import total_ordering
 
 from django.utils import six
 
+__all__ = ['A', 'Area', 'D', 'Distance']
+
 NUMERIC_TYPES = six.integer_types + (float, Decimal)
 AREA_PREFIX = "sq_"
 
diff --git a/django/db/backends/oracle/base.py b/django/db/backends/oracle/base.py
index 43b435fed4..62b17fbe42 100644
--- a/django/db/backends/oracle/base.py
+++ b/django/db/backends/oracle/base.py
@@ -56,13 +56,13 @@ except ImportError as e:
     raise ImproperlyConfigured("Error loading cx_Oracle module: %s" % e)
 
 # Some of these import cx_Oracle, so import them after checking if it's installed.
-from .client import DatabaseClient                          # isort:skip
-from .creation import DatabaseCreation                      # isort:skip
-from .features import DatabaseFeatures                      # isort:skip
-from .introspection import DatabaseIntrospection            # isort:skip
-from .operations import DatabaseOperations                  # isort:skip
-from .schema import DatabaseSchemaEditor                    # isort:skip
-from .utils import Oracle_datetime, convert_unicode         # isort:skip
+from .client import DatabaseClient                          # NOQA isort:skip
+from .creation import DatabaseCreation                      # NOQA isort:skip
+from .features import DatabaseFeatures                      # NOQA isort:skip
+from .introspection import DatabaseIntrospection            # NOQA isort:skip
+from .operations import DatabaseOperations                  # NOQA isort:skip
+from .schema import DatabaseSchemaEditor                    # NOQA isort:skip
+from .utils import Oracle_datetime, convert_unicode         # NOQA isort:skip
 
 DatabaseError = Database.DatabaseError
 IntegrityError = Database.IntegrityError
diff --git a/django/db/backends/postgresql/base.py b/django/db/backends/postgresql/base.py
index 2f3b00bfb6..8819c39d31 100644
--- a/django/db/backends/postgresql/base.py
+++ b/django/db/backends/postgresql/base.py
@@ -35,14 +35,14 @@ if PSYCOPG2_VERSION < (2, 4, 5):
 
 
 # Some of these import psycopg2, so import them after checking if it's installed.
-from .client import DatabaseClient                          # isort:skip
-from .creation import DatabaseCreation                      # isort:skip
-from .features import DatabaseFeatures                      # isort:skip
-from .introspection import DatabaseIntrospection            # isort:skip
-from .operations import DatabaseOperations                  # isort:skip
-from .schema import DatabaseSchemaEditor                    # isort:skip
-from .utils import utc_tzinfo_factory                       # isort:skip
-from .version import get_version                            # isort:skip
+from .client import DatabaseClient                          # NOQA isort:skip
+from .creation import DatabaseCreation                      # NOQA isort:skip
+from .features import DatabaseFeatures                      # NOQA isort:skip
+from .introspection import DatabaseIntrospection            # NOQA isort:skip
+from .operations import DatabaseOperations                  # NOQA isort:skip
+from .schema import DatabaseSchemaEditor                    # NOQA isort:skip
+from .utils import utc_tzinfo_factory                       # NOQA isort:skip
+from .version import get_version                            # NOQA isort:skip
 
 DatabaseError = Database.DatabaseError
 IntegrityError = Database.IntegrityError
diff --git a/setup.cfg b/setup.cfg
index 580b41c349..271b443b4f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -4,7 +4,7 @@ install-script = scripts/rpm-install.sh
 
 [flake8]
 exclude = build,.git,./django/utils/lru_cache.py,./django/utils/six.py,./django/conf/app_template/*,./django/dispatch/weakref_backports.py,./tests/.env,./xmlrunner,tests/view_tests/tests/py3_test_debug.py,tests/template_tests/annotated_tag_function.py
-ignore = E128,E402,W601
+ignore = E128,W601
 max-line-length = 119
 
 [isort]