Fix unused-import errors

cms/djangoapps/contentstore/features/course-settings.py

@@ -3,7 +3,7 @@
 
 from lettuce import world, step
 from selenium.webdriver.common.keys import Keys
-from common import type_in_codemirror, upload_file
+from common import type_in_codemirror
 from django.conf import settings
 
 from nose.tools import assert_true, assert_false

cms/djangoapps/contentstore/tests/test_contentstore.py

@@ -2,7 +2,6 @@
 
 import copy
 import mock
-from mock import patch
 import shutil
 import lxml.html
 from lxml import etree

cms/djangoapps/contentstore/tests/test_i18n.py

@@ -10,7 +10,6 @@ from contentstore.tests.utils import AjaxEnabledTestClient
 from xmodule.modulestore.django import ModuleI18nService
 from django.utils import translation
 from django.utils.translation import get_language
-from django.conf import settings
 from xmodule.modulestore.tests.factories import ItemFactory, CourseFactory
 from contentstore.views.preview import _preview_module_system
 

cms/djangoapps/contentstore/tests/test_libraries.py

@@ -14,7 +14,6 @@ from student.roles import (
     CourseInstructorRole, CourseStaffRole, CourseCreatorRole, LibraryUserRole,
     OrgStaffRole, OrgInstructorRole, OrgLibraryUserRole,
 )
-from xblock.reference.user_service import XBlockUser
 from xmodule.modulestore import ModuleStoreEnum
 from xmodule.modulestore.django import modulestore
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase

cms/djangoapps/contentstore/utils.py

@@ -3,7 +3,6 @@ Common utility functions useful throughout the contentstore
 """
 
 import logging
-import re
 from datetime import datetime
 from pytz import UTC
 

cms/djangoapps/contentstore/views/dev.py

@@ -5,8 +5,6 @@ in a 404 error.
 """
 # pylint: disable=unused-argument
 from edxmako.shortcuts import render_to_response
-from mako.exceptions import TopLevelLookupException
-from django.http import HttpResponseNotFound
 
 
 def dev_mode(request):

cms/djangoapps/contentstore/views/helpers.py

@@ -9,10 +9,9 @@ import urllib
 
 from django.conf import settings
 from django.http import HttpResponse
-from django.shortcuts import redirect
 from django.utils.translation import ugettext as _
 
-from edxmako.shortcuts import render_to_string, render_to_response
+from edxmako.shortcuts import render_to_string
 from opaque_keys.edx.keys import UsageKey
 from xblock.core import XBlock
 import dogstats_wrapper as dog_stats_api

cms/djangoapps/contentstore/views/preview.py

@@ -27,7 +27,6 @@ from xblock.runtime import KvsFieldData
 from xblock.django.request import webob_to_django_response, django_to_webob_request
 from xblock.exceptions import NoSuchHandlerError
 from xblock.fragment import Fragment
-from student.auth import has_studio_read_access, has_studio_write_access
 from xblock_django.user_service import DjangoXBlockUserService
 
 from lms.djangoapps.lms_xblock.field_data import LmsFieldData

cms/djangoapps/contentstore/views/tests/test_course_index.py

@@ -10,7 +10,6 @@ import pytz
 
 from django.conf import settings
 from django.core.exceptions import PermissionDenied
-from django.test.utils import override_settings
 from django.utils.translation import ugettext as _
 
 from contentstore.courseware_index import CoursewareSearchIndexer, SearchIndexingError

cms/djangoapps/course_creators/tests/test_views.py

@@ -4,7 +4,7 @@ Tests course_creators.views.py.
 
 from django.contrib.auth.models import User
 from django.core.exceptions import PermissionDenied
-from django.test import TestCase, RequestFactory
+from django.test import TestCase
 from django.core.urlresolvers import reverse
 
 from course_creators.views import add_user_with_status_unrequested, add_user_with_status_granted