INCR-459: Run python-modernize and isort

lms/djangoapps/course_blocks/api.py

@@ -2,9 +2,11 @@
 API entry point to the course_blocks app with top-level
 get_course_blocks function.
 """
-from django.conf import settings
+from __future__ import absolute_import
 
+from django.conf import settings
 from edx_when import field_data
+
 from openedx.core.djangoapps.content.block_structure.api import get_block_structure_manager
 from openedx.core.djangoapps.content.block_structure.transformers import BlockStructureTransformers
 from openedx.features.content_type_gating.block_transformers import ContentTypeGateTransformer

lms/djangoapps/course_blocks/usage_info.py

@@ -2,6 +2,8 @@
 Declares CourseUsageInfo class to be used by the transform method in
 Transformers.
 """
+from __future__ import absolute_import
+
 from lms.djangoapps.courseware.access import _has_access_to_course
 
 

lms/djangoapps/course_blocks/utils.py

 """
 Common utilities for use along with the course blocks.
 """
+from __future__ import absolute_import
+
 import json
 
 from courseware.models import StudentModule

lms/djangoapps/course_goals/handlers.py

 """
 Signal handlers for course goals.
 """
+from __future__ import absolute_import
+
 from django.db import models
 from django.dispatch import receiver
 

lms/djangoapps/lms_xblock/migrations/0001_initial.py

 # -*- coding: utf-8 -*-
-from __future__ import unicode_literals
+from __future__ import absolute_import, unicode_literals
 
-from django.db import migrations, models
 import django.db.models.deletion
 from django.conf import settings
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):