Remove unused imports

cms/djangoapps/contentstore/features/video.py

 # pylint: disable=missing-docstring
 
 from lettuce import world, step
-from selenium.webdriver.common.keys import Keys
-from xmodule.modulestore.django import modulestore
 
 SELECTORS = {
     'spinner': '.video-wrapper .spinner',

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

@@ -13,7 +13,6 @@ from .prompt import query_yes_no
 from contentstore.utils import delete_course_and_groups
 from opaque_keys.edx.keys import CourseKey
 from opaque_keys import InvalidKeyError
-from opaque_keys.edx.locations import SlashSeparatedCourseKey
 from xmodule.modulestore import ModuleStoreEnum
 from xmodule.modulestore.django import modulestore
 

cms/djangoapps/contentstore/management/commands/tests/test_delete_course.py

@@ -2,7 +2,6 @@
 Unittests for deleting a course in an chosen modulestore
 """
 
-import unittest
 import mock
 
 from opaque_keys.edx.locations import SlashSeparatedCourseKey

cms/djangoapps/contentstore/tests/test_courseware_index.py

@@ -7,7 +7,7 @@ from lazy.lazy import lazy
 import time
 from datetime import datetime
 from dateutil.tz import tzutc
-from mock import patch, call
+from mock import patch
 from pytz import UTC
 from uuid import uuid4
 from unittest import skip

cms/djangoapps/contentstore/tests/test_crud.py

-import unittest
-
 from xmodule import templates
 from xmodule.modulestore import ModuleStoreEnum
 from xmodule.modulestore.tests.factories import CourseFactory, ItemFactory

cms/djangoapps/contentstore/tests/test_utils.py

@@ -3,7 +3,6 @@ import collections
 from datetime import datetime, timedelta
 
 import mock
-import ddt
 from pytz import UTC
 from django.test import TestCase
 from django.test.utils import override_settings

cms/djangoapps/contentstore/views/component.py

@@ -16,7 +16,6 @@ from xmodule.modulestore.django import modulestore
 from xblock.core import XBlock
 from xblock.django.request import webob_to_django_response, django_to_webob_request
 from xblock.exceptions import NoSuchHandlerError
-from xblock.fields import Scope
 from xblock.plugin import PluginMissingError
 from xblock.runtime import Mixologist
 
@@ -28,7 +27,6 @@ from opaque_keys.edx.keys import UsageKey
 
 from student.auth import has_course_author_access
 from django.utils.translation import ugettext as _
-from models.settings.course_grading import CourseGradingModel
 from xblock_django.models import XBlockDisableConfig
 
 __all__ = [

cms/djangoapps/contentstore/views/entrance_exam.py

@@ -3,7 +3,6 @@ Entrance Exams view module -- handles all requests related to entrance exam mana
 Intended to be utilized as an AJAX callback handler, versus a proper view/screen
 """
 from functools import wraps
-import json
 import logging
 
 from django.contrib.auth.decorators import login_required

cms/djangoapps/contentstore/views/library.py

@@ -5,7 +5,6 @@ multiple courses.
 """
 from __future__ import absolute_import
 
-import json
 import logging
 
 from contentstore.views.item import create_xblock_info

common/djangoapps/cache_toolbox/middleware.py

@@ -78,7 +78,6 @@ choice for most environments but you may be happy with the trade-offs of the
 
 """
 
-from django.contrib.auth import SESSION_KEY
 from django.contrib.auth.models import User
 from django.contrib.auth.middleware import AuthenticationMiddleware
 from logging import getLogger

common/djangoapps/contentserver/test/test_contentserver.py

@@ -18,7 +18,6 @@ from mock import patch
 from xmodule.contentstore.django import contentstore
 from xmodule.modulestore.django import modulestore
 from xmodule.modulestore.tests.django_utils import SharedModuleStoreTestCase
-from xmodule.modulestore import ModuleStoreEnum
 from xmodule.modulestore.xml_importer import import_course_from_xml
 
 from contentserver.middleware import parse_range_header, HTTP_DATE_FORMAT, StaticContentServer

common/djangoapps/embargo/tests/test_api.py

@@ -11,7 +11,7 @@ import ddt
 from django.conf import settings
 from django.test.utils import override_settings
 from django.core.cache import cache
-from django.db import connection, transaction
+from django.db import connection
 
 from student.tests.factories import UserFactory
 from xmodule.modulestore.tests.factories import CourseFactory

common/djangoapps/status/status.py

@@ -2,7 +2,6 @@
 A tiny app that checks for a status message.
 """
 
-from django.conf import settings
 import logging
 
 from .models import GlobalStatusMessage

common/djangoapps/student/tests/test_email.py

 
 import json
-import django.db
 import unittest
 
 from student.tests.factories import UserFactory, RegistrationFactory, PendingEmailChangeFactory

common/djangoapps/third_party_auth/pipeline.py

@@ -73,7 +73,6 @@ from django.contrib.auth.models import User
 from django.core.urlresolvers import reverse
 from django.http import HttpResponseBadRequest
 from django.shortcuts import redirect
-from django.utils.translation import ugettext as _
 from social.apps.django_app.default import models
 from social.exceptions import AuthException
 from social.pipeline import partial

common/lib/xmodule/xmodule/modulestore/inheritance.py

@@ -3,9 +3,7 @@ Support for inheritance of fields down an XBlock hierarchy.
 """
 from __future__ import absolute_import
 
-from datetime import datetime
 from django.conf import settings
-from pytz import UTC
 
 from xmodule.partitions.partitions import UserPartition
 from xblock.fields import Scope, Boolean, String, Float, XBlockMixin, Dict, Integer, List

common/lib/xmodule/xmodule/modulestore/tests/test_contentstore.py

@@ -16,7 +16,6 @@ from xmodule.contentstore.mongo import MongoContentStore
 from xmodule.contentstore.content import StaticContent
 from xmodule.exceptions import NotFoundError
 import ddt
-from __builtin__ import delattr
 from xmodule.modulestore.tests.mongo_connection import MONGO_PORT_NUM, MONGO_HOST
 
 log = logging.getLogger(__name__)

common/lib/xmodule/xmodule/modulestore/tests/test_cross_modulestore_import_export.py

@@ -11,7 +11,7 @@ and then for each combination of modulestores, performing the sequence:
     4) Compare all modules in the source and destination modulestores to make sure that they line up
 
 """
-from contextlib import contextmanager, nested
+
 import itertools
 import os
 from path import Path as path
@@ -25,11 +25,8 @@ from mock import patch
 from xmodule.tests import CourseComparisonTest
 from xmodule.modulestore.xml_importer import import_course_from_xml
 from xmodule.modulestore.xml_exporter import export_course_to_xml
-from xmodule.modulestore.tests.mongo_connection import MONGO_PORT_NUM, MONGO_HOST
 from xmodule.modulestore.tests.utils import mock_tab_from_json
-from xmodule.modulestore.inheritance import InheritanceMixin
 from xmodule.partitions.tests.test_partitions import PartitionTestCase
-from xmodule.x_module import XModuleMixin
 from xmodule.modulestore.tests.utils import (
     MongoContentstoreBuilder, MODULESTORE_SETUPS, SPLIT_MODULESTORE_SETUP,
     CONTENTSTORE_SETUPS, TEST_DATA_DIR

common/lib/xmodule/xmodule/modulestore/xml_exporter.py

@@ -15,10 +15,8 @@ from xmodule.modulestore.store_utilities import draft_node_constructor, get_draf
 from xmodule.modulestore import LIBRARY_ROOT
 from fs.osfs import OSFS
 from json import dumps
-import json
 import os
-from path import Path as path
-import shutil
+
 from xmodule.modulestore.draft_and_published import DIRECT_ONLY_CATEGORIES
 from opaque_keys.edx.locator import CourseLocator, LibraryLocator
 

common/lib/xmodule/xmodule/seq_module.py

@@ -7,7 +7,6 @@ import collections
 import json
 import logging
 from pkg_resources import resource_string
-import warnings
 
 from lxml import etree
 from xblock.core import XBlock