Apply isort

addressfield/fields.py

addressfield/widgets.py

fabfile.py

opentech/apply/activity/admin.py

opentech/apply/activity/forms.py

...ch/apply/activity/management/commands/migrate_comments.py

opentech/apply/activity/messaging.py

opentech/apply/activity/models.py

opentech/apply/activity/tasks.py

opentech/apply/activity/tests/factories.py

opentech/apply/activity/tests/test_messaging.py

opentech/apply/activity/tests/test_models.py

opentech/apply/activity/tests/test_tasks.py

opentech/apply/activity/urls.py

opentech/apply/activity/views.py

opentech/apply/categories/admin_helpers.py

opentech/apply/categories/admin_views.py

opentech/apply/categories/blocks.py

...h/apply/categories/management/commands/seed_categories.py

opentech/apply/categories/models.py