diff --git a/cms/djangoapps/contentstore/management/commands/tests/test_export.py b/cms/djangoapps/contentstore/management/commands/tests/test_export.py
index a65827bb55a2f6e26b55ba422305290b48ad2e4f..32123455c01364d7b300d84524dab82409809371 100644
--- a/cms/djangoapps/contentstore/management/commands/tests/test_export.py
+++ b/cms/djangoapps/contentstore/management/commands/tests/test_export.py
@@ -1,16 +1,17 @@
 """
 Tests for exporting courseware to the desired path
 """
-import unittest
 import shutil
+import unittest
+from tempfile import mkdtemp
+
 import ddt
 from django.core.management import CommandError, call_command
-from tempfile import mkdtemp
 
-from xmodule.modulestore.tests.factories import CourseFactory
 from xmodule.modulestore import ModuleStoreEnum
-from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 from xmodule.modulestore.django import modulestore
+from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
+from xmodule.modulestore.tests.factories import CourseFactory
 
 
 class TestArgParsingCourseExport(unittest.TestCase):
diff --git a/cms/djangoapps/contentstore/management/commands/tests/test_export_olx.py b/cms/djangoapps/contentstore/management/commands/tests/test_export_olx.py
index 4b0b73ea1be713f25204a5280064c7d25fcf792f..ebfe27ff7769682b35788a6dd139d30d8e56d73b 100644
--- a/cms/djangoapps/contentstore/management/commands/tests/test_export_olx.py
+++ b/cms/djangoapps/contentstore/management/commands/tests/test_export_olx.py
@@ -2,20 +2,20 @@
 Tests for exporting OLX content.
 """
 
-import ddt
-from path import Path as path
 import shutil
-from StringIO import StringIO
 import tarfile
-from tempfile import mkdtemp
 import unittest
+from StringIO import StringIO
+from tempfile import mkdtemp
 
+import ddt
 from django.core.management import CommandError, call_command
+from path import Path as path
 
-from xmodule.modulestore.tests.factories import CourseFactory
 from xmodule.modulestore import ModuleStoreEnum
-from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 from xmodule.modulestore.django import modulestore
+from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
+from xmodule.modulestore.tests.factories import CourseFactory
 
 
 class TestArgParsingCourseExportOlx(unittest.TestCase):
diff --git a/cms/djangoapps/contentstore/management/commands/tests/test_import.py b/cms/djangoapps/contentstore/management/commands/tests/test_import.py
index 8686ab8eb61d67ec8a57d9fb1b72dd805c8fb70e..9de69759245e902c4a5ffb8aff66306e4bf06928 100644
--- a/cms/djangoapps/contentstore/management/commands/tests/test_import.py
+++ b/cms/djangoapps/contentstore/management/commands/tests/test_import.py
@@ -3,15 +3,15 @@ Unittests for importing a course via management command
 """
 
 import os
-from path import Path as path
 import shutil
 import tempfile
 
 from django.core.management import call_command
+from path import Path as path
 
 from django_comment_common.utils import are_permissions_roles_seeded
-from xmodule.modulestore.django import modulestore
 from xmodule.modulestore import ModuleStoreEnum
+from xmodule.modulestore.django import modulestore
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 
 
diff --git a/cms/djangoapps/contentstore/signals/handlers.py b/cms/djangoapps/contentstore/signals/handlers.py
index f6d4bf9307da8ad56bed15995f27948ab8d53bdd..7d7986ad12194e13e2ebd0084027dd18a5b7cf70 100644
--- a/cms/djangoapps/contentstore/signals/handlers.py
+++ b/cms/djangoapps/contentstore/signals/handlers.py
@@ -15,9 +15,9 @@ from openedx.core.djangoapps.credit.signals import on_course_publish
 from openedx.core.lib.gating import api as gating_api
 from track.event_transaction_utils import get_event_transaction_id, get_event_transaction_type
 from util.module_utils import yield_dynamic_descriptor_descendants
-from .signals import GRADING_POLICY_CHANGED
 from xmodule.modulestore.django import SignalHandler, modulestore
 
+from .signals import GRADING_POLICY_CHANGED
 
 log = logging.getLogger(__name__)
 
diff --git a/cms/djangoapps/contentstore/tests/test_transcripts_utils.py b/cms/djangoapps/contentstore/tests/test_transcripts_utils.py
index 84395590afb053d260e50e5e6a89a5729069c2d3..c1323126be83739df5fe66c5731654fdddbd0b87 100644
--- a/cms/djangoapps/contentstore/tests/test_transcripts_utils.py
+++ b/cms/djangoapps/contentstore/tests/test_transcripts_utils.py
@@ -1,13 +1,13 @@
 # -*- coding: utf-8 -*-
 """ Tests for transcripts_utils. """
 import copy
-import tempfile
-import ddt
 import json
+import tempfile
 import textwrap
 import unittest
 from uuid import uuid4
 
+import ddt
 import pytest
 from django.conf import settings
 from django.test.utils import override_settings
@@ -16,12 +16,12 @@ from mock import Mock, patch
 from six import text_type
 
 from contentstore.tests.utils import mock_requests_get
+from student.tests.factories import UserFactory
 from xmodule.contentstore.content import StaticContent
 from xmodule.contentstore.django import contentstore
 from xmodule.exceptions import NotFoundError
 from xmodule.modulestore.tests.django_utils import SharedModuleStoreTestCase
 from xmodule.modulestore.tests.factories import CourseFactory, ItemFactory
-from student.tests.factories import UserFactory
 from xmodule.video_module import transcripts_utils
 
 TEST_DATA_CONTENTSTORE = copy.deepcopy(settings.CONTENTSTORE)
diff --git a/cms/djangoapps/contentstore/views/import_export.py b/cms/djangoapps/contentstore/views/import_export.py
index 97bad890512e79e147bc338d0908547f70b66716..d519a608fe558b6b671baf54b3d4e8f8c8c1eced 100644
--- a/cms/djangoapps/contentstore/views/import_export.py
+++ b/cms/djangoapps/contentstore/views/import_export.py
@@ -8,6 +8,7 @@ import logging
 import os
 import re
 import shutil
+from wsgiref.util import FileWrapper
 
 from django.conf import settings
 from django.contrib.auth.decorators import login_required
@@ -26,7 +27,6 @@ from six import text_type
 from storages.backends.s3boto import S3BotoStorage
 from user_tasks.conf import settings as user_tasks_settings
 from user_tasks.models import UserTaskArtifact, UserTaskStatus
-from wsgiref.util import FileWrapper
 
 from contentstore.storage import course_import_export_storage
 from contentstore.tasks import CourseExportTask, CourseImportTask, export_olx, import_olx
diff --git a/cms/djangoapps/contentstore/views/tests/test_gating.py b/cms/djangoapps/contentstore/views/tests/test_gating.py
index 887e56f8eb4b303969749388574225a981296589..454cc17bcc3f43c2b5ecb9f2b4086361dfa0e7d7 100644
--- a/cms/djangoapps/contentstore/views/tests/test_gating.py
+++ b/cms/djangoapps/contentstore/views/tests/test_gating.py
@@ -1,9 +1,9 @@
 """
 Unit tests for the gating feature in Studio
 """
-import ddt
 import json
 
+import ddt
 from mock import patch
 
 from contentstore.tests.utils import CourseTestCase
diff --git a/cms/djangoapps/contentstore/views/tests/test_transcript_settings.py b/cms/djangoapps/contentstore/views/tests/test_transcript_settings.py
index 8d55c02bb9f3b148c293b0b922c2fabe2d56e8fa..f2f7ef9f20b49f1c9a2e34c15ee3aaffc1a7e336 100644
--- a/cms/djangoapps/contentstore/views/tests/test_transcript_settings.py
+++ b/cms/djangoapps/contentstore/views/tests/test_transcript_settings.py
@@ -1,12 +1,12 @@
 # -*- coding: utf-8 -*-
-import ddt
 import json
 from io import BytesIO
-from mock import Mock, patch, ANY
 
+import ddt
 from django.test.testcases import TestCase
 from django.urls import reverse
 from edxval import api
+from mock import ANY, Mock, patch
 
 from contentstore.tests.utils import CourseTestCase
 from contentstore.utils import reverse_course_url
diff --git a/cms/djangoapps/contentstore/views/tests/test_transcripts.py b/cms/djangoapps/contentstore/views/tests/test_transcripts.py
index 009fd08506832bc665ac0198da56b82796a723a0..05e03aebd68311efd17c80e6e219410564745e1f 100644
--- a/cms/djangoapps/contentstore/views/tests/test_transcripts.py
+++ b/cms/djangoapps/contentstore/views/tests/test_transcripts.py
@@ -1,18 +1,18 @@
 """Tests for items views."""
 
 import copy
-from codecs import BOM_UTF8
-import ddt
 import json
-from mock import patch, Mock
 import tempfile
 import textwrap
+from codecs import BOM_UTF8
 from uuid import uuid4
 
+import ddt
 from django.conf import settings
-from django.urls import reverse
 from django.test.utils import override_settings
+from django.urls import reverse
 from edxval.api import create_video
+from mock import Mock, patch
 from opaque_keys.edx.keys import UsageKey
 
 from contentstore.tests.utils import CourseTestCase, mock_requests_get
@@ -23,9 +23,9 @@ from xmodule.exceptions import NotFoundError
 from xmodule.modulestore.django import modulestore
 from xmodule.video_module.transcripts_utils import (
     GetTranscriptsFromYouTubeException,
+    Transcript,
     get_video_transcript_content,
     remove_subs_from_store,
-    Transcript,
 )
 
 TEST_DATA_CONTENTSTORE = copy.deepcopy(settings.CONTENTSTORE)