Fix unused-import errors

common/djangoapps/cache_toolbox/core.py

@@ -10,7 +10,6 @@ Core methods
 
 from django.core.cache import cache
 from django.db import DEFAULT_DB_ALIAS
-from opaque_keys import InvalidKeyError
 
 from . import app_settings
 

common/djangoapps/course_modes/tests/test_views.py

@@ -14,7 +14,6 @@ from django.conf import settings
 from django.core.urlresolvers import reverse
 
 from lms.djangoapps.commerce.tests import test_utils as ecomm_test_utils
-from openedx.core.djangoapps.theming.tests import test_util as theming_test_utils
 from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
 from xmodule.modulestore.django import modulestore
 from xmodule.modulestore.tests.factories import CourseFactory

common/djangoapps/embargo/tests/test_views.py

@@ -4,7 +4,6 @@ import unittest
 from mock import patch
 from django.core.urlresolvers import reverse
 from django.conf import settings
-from mako.exceptions import TopLevelLookupException
 import ddt
 
 from util.testing import UrlResetMixin

common/djangoapps/embargo/views.py

@@ -2,7 +2,6 @@
 
 from django.http import Http404
 from django.views.generic.base import View
-from django.conf import settings
 
 from edxmako.shortcuts import render_to_response
 

common/djangoapps/enrollment/tests/test_api.py

@@ -4,10 +4,8 @@ Tests for student enrollment.
 from mock import patch, Mock
 
 import ddt
-from django.core.cache import cache
 from nose.tools import raises
 import unittest
-from django.test import TestCase
 from django.test.utils import override_settings
 from django.conf import settings
 

common/djangoapps/external_auth/tests/test_shib.py

@@ -23,7 +23,7 @@ from nose.plugins.attrib import attr
 from urllib import urlencode
 
 from openedx.core.djangolib.testing.utils import CacheIsolationTestCase
-from student.views import create_account, change_enrollment
+from student.views import change_enrollment
 from student.models import UserProfile, CourseEnrollment
 from student.tests.factories import UserFactory
 from xmodule.modulestore.tests.factories import CourseFactory

common/djangoapps/student/tests/test_enrollment.py

@@ -13,7 +13,7 @@ from xmodule.modulestore.tests.django_utils import SharedModuleStoreTestCase
 from xmodule.modulestore.tests.factories import CourseFactory
 from util.testing import UrlResetMixin
 from embargo.test_utils import restrict_course
-from student.tests.factories import UserFactory, CourseModeFactory, CourseEnrollmentFactory
+from student.tests.factories import UserFactory, CourseModeFactory
 from student.models import CourseEnrollment, CourseFullError
 from student.roles import (
     CourseInstructorRole,

common/djangoapps/student/tests/test_reset_password.py

@@ -13,8 +13,7 @@ from django.contrib.auth.models import User
 from django.contrib.auth.hashers import UNUSABLE_PASSWORD_PREFIX
 from django.contrib.auth.tokens import default_token_generator
 
-from django.utils.encoding import force_bytes, force_text
-from django.utils.http import urlsafe_base64_encode, base36_to_int, int_to_base36
+from django.utils.http import int_to_base36
 
 from mock import Mock, patch
 import ddt

common/djangoapps/student/tests/test_user_profile_properties.py

@@ -2,7 +2,6 @@
 
 import datetime
 import ddt
-from django.test import TestCase
 
 from student.models import UserProfile
 from student.tests.factories import UserFactory

common/djangoapps/xblock_django/api.py

@@ -1,7 +1,8 @@
 """
 API methods related to xblock state.
 """
-from xblock_django.models import XBlockConfiguration, XBlockStudioConfiguration, XBlockStudioConfigurationFlag
+
+from xblock_django.models import XBlockConfiguration, XBlockStudioConfiguration
 
 
 def deprecated_xblocks():

common/djangoapps/xblock_django/models.py

@@ -1,12 +1,9 @@
 """
 Models.
 """
-from django.utils.translation import ugettext_lazy as _
 
-from django.conf import settings
-
-from django.db.models import TextField
 from django.db import models
+from django.utils.translation import ugettext_lazy as _
 
 from config_models.models import ConfigurationModel
 

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

@@ -5,12 +5,10 @@ Modulestore configuration for test cases.
 import copy
 import functools
 import os
-from uuid import uuid4
 from contextlib import contextmanager
 
 from mock import patch
 
-import django.core.cache
 from django.conf import settings
 from django.contrib.auth.models import User
 from django.test import TestCase

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

@@ -28,7 +28,6 @@ from xmodule.modulestore.edit_info import EditInfoMixin
 from xmodule.modulestore.inheritance import InheritanceMixin
 from xmodule.modulestore.tests.utils import MongoContentstoreBuilder
 from xmodule.contentstore.content import StaticContent
-from opaque_keys.edx.keys import CourseKey
 from xmodule.modulestore.xml_importer import import_course_from_xml
 from xmodule.modulestore.xml_exporter import export_course_to_xml
 from xmodule.modulestore.tests.test_asides import AsideTestType

common/test/acceptance/tests/lms/test_learner_profile.py

@@ -6,7 +6,6 @@ from contextlib import contextmanager
 
 from bok_choy.web_app_test import WebAppTest
 from datetime import datetime
-from flaky import flaky
 from nose.plugins.attrib import attr
 
 from common.test.acceptance.pages.common.logout import LogoutPage

common/test/acceptance/tests/lms/test_oauth2.py

@@ -4,8 +4,6 @@ from common.test.acceptance.pages.lms.oauth2_confirmation import OAuth2Confirmat
 from common.test.acceptance.pages.lms.auto_auth import AutoAuthPage
 from bok_choy.web_app_test import WebAppTest
 
-from flaky import flaky
-
 from urlparse import urlparse, parse_qsl