Sorted imports per isort 4.2.9.

django/contrib/gis/db/backends/mysql/base.py

-from django.db.backends.mysql.base import \
-    DatabaseWrapper as MySQLDatabaseWrapper
+from django.db.backends.mysql.base import (
+    DatabaseWrapper as MySQLDatabaseWrapper,
+)
 
 from .features import DatabaseFeatures
 from .introspection import MySQLIntrospection

django/contrib/gis/db/backends/mysql/features.py

 from django.contrib.gis.db.backends.base.features import BaseSpatialFeatures
-from django.db.backends.mysql.features import \
-    DatabaseFeatures as MySQLDatabaseFeatures
+from django.db.backends.mysql.features import (
+    DatabaseFeatures as MySQLDatabaseFeatures,
+)
 
 
 class DatabaseFeatures(BaseSpatialFeatures, MySQLDatabaseFeatures):

django/contrib/gis/db/backends/mysql/operations.py

 from django.contrib.gis.db.backends.base.adapter import WKTAdapter
-from django.contrib.gis.db.backends.base.operations import \
-    BaseSpatialOperations
+from django.contrib.gis.db.backends.base.operations import (
+    BaseSpatialOperations,
+)
 from django.contrib.gis.db.backends.utils import SpatialOperator
 from django.contrib.gis.db.models import GeometryField, aggregates
 from django.db.backends.mysql.operations import DatabaseOperations

django/contrib/gis/db/backends/oracle/base.py

-from django.db.backends.oracle.base import \
-    DatabaseWrapper as OracleDatabaseWrapper
+from django.db.backends.oracle.base import (
+    DatabaseWrapper as OracleDatabaseWrapper,
+)
 
 from .features import DatabaseFeatures
 from .introspection import OracleIntrospection

django/contrib/gis/db/backends/oracle/features.py

 from django.contrib.gis.db.backends.base.features import BaseSpatialFeatures
-from django.db.backends.oracle.features import \
-    DatabaseFeatures as OracleDatabaseFeatures
+from django.db.backends.oracle.features import (
+    DatabaseFeatures as OracleDatabaseFeatures,
+)
 
 
 class DatabaseFeatures(BaseSpatialFeatures, OracleDatabaseFeatures):

django/contrib/gis/db/backends/oracle/operations.py

@@ -9,8 +9,9 @@
 """
 import re
 
-from django.contrib.gis.db.backends.base.operations import \
-    BaseSpatialOperations
+from django.contrib.gis.db.backends.base.operations import (
+    BaseSpatialOperations,
+)
 from django.contrib.gis.db.backends.oracle.adapter import OracleSpatialAdapter
 from django.contrib.gis.db.backends.utils import SpatialOperator
 from django.contrib.gis.db.models import aggregates

django/contrib/gis/db/backends/postgis/base.py

 from django.db.backends.base.base import NO_DB_ALIAS
-from django.db.backends.postgresql.base import \
-    DatabaseWrapper as Psycopg2DatabaseWrapper
+from django.db.backends.postgresql.base import (
+    DatabaseWrapper as Psycopg2DatabaseWrapper,
+)
 
 from .features import DatabaseFeatures
 from .introspection import PostGISIntrospection

django/contrib/gis/db/backends/postgis/features.py

 from django.contrib.gis.db.backends.base.features import BaseSpatialFeatures
-from django.db.backends.postgresql.features import \
-    DatabaseFeatures as Psycopg2DatabaseFeatures
+from django.db.backends.postgresql.features import (
+    DatabaseFeatures as Psycopg2DatabaseFeatures,
+)
 
 
 class DatabaseFeatures(BaseSpatialFeatures, Psycopg2DatabaseFeatures):

django/contrib/gis/db/backends/postgis/operations.py

 import re
 
 from django.conf import settings
-from django.contrib.gis.db.backends.base.operations import \
-    BaseSpatialOperations
+from django.contrib.gis.db.backends.base.operations import (
+    BaseSpatialOperations,
+)
 from django.contrib.gis.db.backends.utils import SpatialOperator
 from django.contrib.gis.gdal import GDALRaster
 from django.contrib.gis.measure import Distance

django/contrib/gis/db/backends/spatialite/features.py

 from django.contrib.gis.db.backends.base.features import BaseSpatialFeatures
-from django.db.backends.sqlite3.features import \
-    DatabaseFeatures as SQLiteDatabaseFeatures
+from django.db.backends.sqlite3.features import (
+    DatabaseFeatures as SQLiteDatabaseFeatures,
+)
 from django.utils.functional import cached_property
 
 

django/contrib/gis/db/backends/spatialite/operations.py

@@ -5,8 +5,9 @@ https://www.gaia-gis.it/gaia-sins/spatialite-sql-4.2.1.html
 """
 import re
 
-from django.contrib.gis.db.backends.base.operations import \
-    BaseSpatialOperations
+from django.contrib.gis.db.backends.base.operations import (
+    BaseSpatialOperations,
+)
 from django.contrib.gis.db.backends.spatialite.adapter import SpatiaLiteAdapter
 from django.contrib.gis.db.backends.utils import SpatialOperator
 from django.contrib.gis.db.models import aggregates

django/contrib/gis/management/commands/inspectdb.py

-from django.core.management.commands.inspectdb import \
-    Command as InspectDBCommand
+from django.core.management.commands.inspectdb import (
+    Command as InspectDBCommand,
+)
 
 
 class Command(InspectDBCommand):

django/contrib/staticfiles/management/commands/runserver.py

 from django.conf import settings
 from django.contrib.staticfiles.handlers import StaticFilesHandler
-from django.core.management.commands.runserver import \
-    Command as RunserverCommand
+from django.core.management.commands.runserver import (
+    Command as RunserverCommand,
+)
 
 
 class Command(RunserverCommand):

django/core/mail/backends/filebased.py

@@ -5,8 +5,9 @@ import os
 
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
-from django.core.mail.backends.console import \
-    EmailBackend as ConsoleEmailBackend
+from django.core.mail.backends.console import (
+    EmailBackend as ConsoleEmailBackend,
+)
 
 
 class EmailBackend(ConsoleEmailBackend):

tests/backends/test_creation.py

@@ -8,10 +8,12 @@ from django.db import DEFAULT_DB_ALIAS, connection, connections
 from django.db.backends.base.creation import (
     TEST_DATABASE_PREFIX, BaseDatabaseCreation,
 )
-from django.db.backends.mysql.creation import \
-    DatabaseCreation as MySQLDatabaseCreation
-from django.db.backends.oracle.creation import \
-    DatabaseCreation as OracleDatabaseCreation
+from django.db.backends.mysql.creation import (
+    DatabaseCreation as MySQLDatabaseCreation,
+)
+from django.db.backends.oracle.creation import (
+    DatabaseCreation as OracleDatabaseCreation,
+)
 from django.db.utils import DatabaseError
 from django.test import SimpleTestCase, TestCase
 

tests/base/models.py

 from django.db import models
 
-
 # The models definitions below used to crash. Generating models dynamically
 # at runtime is a bad idea because it pollutes the app registry. This doesn't
 # integrate well with the test suite but at least it prevents regressions.

tests/foreign_object/tests.py

@@ -13,7 +13,6 @@ from .models import (
     Group, Membership, NewsArticle, Person,
 )
 
-
 # Note that these tests are testing internal implementation details.
 # ForeignObject is not part of public API.
 

tests/i18n/test_compilation.py

@@ -9,8 +9,9 @@ from unittest import mock
 from django.core.management import (
     CommandError, call_command, execute_from_command_line,
 )
-from django.core.management.commands.makemessages import \
-    Command as MakeMessagesCommand
+from django.core.management.commands.makemessages import (
+    Command as MakeMessagesCommand,
+)
 from django.core.management.utils import find_command
 from django.test import SimpleTestCase, override_settings
 from django.test.utils import captured_stderr, captured_stdout

tests/i18n/test_extraction.py

@@ -11,8 +11,9 @@ from admin_scripts.tests import AdminScriptTestCase
 from django.core import management
 from django.core.management import execute_from_command_line
 from django.core.management.base import CommandError
-from django.core.management.commands.makemessages import \
-    Command as MakeMessagesCommand
+from django.core.management.commands.makemessages import (
+    Command as MakeMessagesCommand,
+)
 from django.core.management.utils import find_command
 from django.test import SimpleTestCase, override_settings
 from django.test.utils import captured_stderr, captured_stdout

tests/model_inheritance/models.py

@@ -13,7 +13,6 @@ Both styles are demonstrated here.
 """
 from django.db import models
 
-
 #
 # Abstract base classes
 #

tests/model_options/models/tablespaces.py

 from django.db import models
 
-
 # Since the test database doesn't have tablespaces, it's impossible for Django
 # to create the tables for models where db_tablespace is set. To avoid this
 # problem, we mark the models as unmanaged, and temporarily revert them to

tests/prefetch_related/models.py

@@ -9,8 +9,6 @@ from django.db.models.query import ModelIterable, QuerySet
 from django.utils.functional import cached_property
 
 
-# Basic tests
-
 class Author(models.Model):
     name = models.CharField(max_length=50, unique=True)
     first_book = models.ForeignKey('Book', models.CASCADE, related_name='first_time_authors')

tests/proxy_models/models.py

@@ -6,7 +6,6 @@ providing a modified interface to the data from the base class.
 """
 from django.db import models
 
-
 # A couple of managers for testing managing overriding in proxy model cases.
 
 

tests/select_related/models.py

@@ -13,7 +13,6 @@ from django.contrib.contenttypes.fields import (
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
 
-
 # Who remembers high school biology?
 
 

tests/serializers/test_data.py

@@ -29,7 +29,6 @@ from .models import (
 )
 from .tests import register_tests
 
-
 # A set of functions that can be used to recreate
 # test data objects of various kinds.
 # The save method is a raw base model save, to make

tests/sessions_tests/tests.py

@@ -11,12 +11,14 @@ from http import cookies
 from django.conf import settings
 from django.contrib.sessions.backends.base import UpdateError
 from django.contrib.sessions.backends.cache import SessionStore as CacheSession
-from django.contrib.sessions.backends.cached_db import \
-    SessionStore as CacheDBSession
+from django.contrib.sessions.backends.cached_db import (
+    SessionStore as CacheDBSession,
+)
 from django.contrib.sessions.backends.db import SessionStore as DatabaseSession
 from django.contrib.sessions.backends.file import SessionStore as FileSession
-from django.contrib.sessions.backends.signed_cookies import \
-    SessionStore as CookieSession
+from django.contrib.sessions.backends.signed_cookies import (
+    SessionStore as CookieSession,
+)
 from django.contrib.sessions.exceptions import InvalidSessionKey
 from django.contrib.sessions.middleware import SessionMiddleware
 from django.contrib.sessions.models import Session

tests/staticfiles_tests/test_storage.py

@@ -7,8 +7,9 @@ from io import StringIO
 
 from django.conf import settings
 from django.contrib.staticfiles import finders, storage
-from django.contrib.staticfiles.management.commands.collectstatic import \
-    Command as CollectstaticCommand
+from django.contrib.staticfiles.management.commands.collectstatic import (
+    Command as CollectstaticCommand,
+)
 from django.core.cache.backends.base import BaseCache
 from django.core.management import call_command
 from django.test import override_settings

tests/unmanaged_models/models.py

@@ -5,7 +5,6 @@ is generated for the table on various manage.py operations.
 
 from django.db import models
 
-
 #  All of these models are created in the database by Django.