Fixing python-modernize issues.

cms/djangoapps/contentstore/api/tests/test_import.py

@@ -1,6 +1,8 @@
 """
 Tests for the course import API views
 """
+from __future__ import absolute_import
+
 import os
 import tarfile
 import tempfile
@@ -9,10 +11,10 @@ from django.urls import reverse
 from path import Path as path
 from rest_framework import status
 from rest_framework.test import APITestCase
+from user_tasks.models import UserTaskStatus
 
 from lms.djangoapps.courseware.tests.factories import StaffFactory
 from student.tests.factories import UserFactory
-from user_tasks.models import UserTaskStatus
 from xmodule.modulestore.tests.django_utils import TEST_DATA_SPLIT_MODULESTORE, SharedModuleStoreTestCase
 from xmodule.modulestore.tests.factories import CourseFactory
 

cms/djangoapps/contentstore/api/tests/test_quality.py

@@ -1,6 +1,8 @@
 """
 Tests for the course import API views
 """
+from __future__ import absolute_import
+
 from rest_framework import status
 
 from .base import BaseCourseViewTest

cms/djangoapps/contentstore/management/commands/clean_cert_name.py

@@ -3,11 +3,13 @@ A single-use management command that provides an interactive way to remove
 erroneous certificate names.
 """
 
+from __future__ import absolute_import
+
 from collections import namedtuple
-from six.moves import input
-from six import text_type
 
 from django.core.management.base import BaseCommand
+from six import text_type
+from six.moves import input, range, zip
 
 from xmodule.modulestore import ModuleStoreEnum
 from xmodule.modulestore.django import modulestore

cms/djangoapps/contentstore/management/commands/edit_course_tabs.py

@@ -6,7 +6,7 @@
 # Run it this way:
 #   ./manage.py cms --settings dev edit_course_tabs --course Stanford/CS99/2013_spring
 #
-from __future__ import print_function
+from __future__ import absolute_import, print_function
 
 from django.core.management.base import BaseCommand, CommandError
 from opaque_keys.edx.keys import CourseKey

cms/djangoapps/contentstore/management/commands/empty_asset_trashcan.py

@@ -1,4 +1,8 @@
-from django.core.management.base import BaseCommand, CommandError
+"""Script to Empty the trashcan"""
+
+from __future__ import absolute_import
+
+from django.core.management.base import BaseCommand
 from opaque_keys.edx.keys import CourseKey
 
 from xmodule.contentstore.utils import empty_asset_trashcan
@@ -8,6 +12,9 @@ from .prompt import query_yes_no
 
 
 class Command(BaseCommand):
+    """
+        Command to Empty the trashcan.
+    """
     help = 'Empty the trashcan. Can pass an optional course_id to limit the damage.'
 
     def add_arguments(self, parser):

cms/djangoapps/contentstore/management/commands/export_all_courses.py

@@ -1,10 +1,10 @@
 """
 Script for exporting all courseware from Mongo to a directory and listing the courses which failed to export
 """
-from __future__ import print_function
-from six import text_type
+from __future__ import absolute_import, print_function
 
 from django.core.management.base import BaseCommand
+from six import text_type
 
 from xmodule.contentstore.django import contentstore
 from xmodule.modulestore.django import modulestore

cms/djangoapps/contentstore/management/commands/export_content_library.py

@@ -1,7 +1,8 @@
 """
 Script for exporting a content library from Mongo to a tar.gz file
 """
-from __future__ import print_function
+from __future__ import absolute_import, print_function
+
 import os
 import shutil
 
@@ -9,9 +10,9 @@ from django.core.management.base import BaseCommand, CommandError
 from opaque_keys import InvalidKeyError
 from opaque_keys.edx.keys import CourseKey
 from opaque_keys.edx.locator import LibraryLocator
-from xmodule.modulestore.django import modulestore
 
 from cms.djangoapps.contentstore import tasks
+from xmodule.modulestore.django import modulestore
 
 
 class Command(BaseCommand):

cms/djangoapps/contentstore/management/commands/git_export.py

@@ -13,13 +13,15 @@ This functionality is also available as an export view in studio if the giturl
 attribute is set and the FEATURE['ENABLE_EXPORT_GIT'] is set.
 """
 
+from __future__ import absolute_import
+
 import logging
-from six import text_type
 
 from django.core.management.base import BaseCommand, CommandError
 from django.utils.translation import ugettext as _
 from opaque_keys import InvalidKeyError
 from opaque_keys.edx.keys import CourseKey
+from six import text_type
 
 import contentstore.git_export_utils as git_export_utils
 from contentstore.git_export_utils import GitExportError

cms/djangoapps/contentstore/management/commands/migrate_to_split.py

@@ -2,6 +2,8 @@
 Django management command to migrate a course from the old Mongo modulestore
 to the new split-Mongo modulestore.
 """
+from __future__ import absolute_import
+
 from django.contrib.auth.models import User
 from django.core.management.base import BaseCommand, CommandError
 from opaque_keys import InvalidKeyError