Merge pull request #5906 from stvstnfrd/pep8/newline

Fix newline-related PEP8 issues

cms/djangoapps/contentstore/__init__.py

-

cms/djangoapps/contentstore/features/common.py

@@ -333,7 +333,6 @@ def get_codemirror_value(index=0, find_prefix="$"):
     )
 
 
-
 def attach_file(filename, sub_path):
     path = os.path.join(TEST_ROOT, sub_path, filename)
     world.browser.execute_script("$('input.file-input').css('display', 'block')")
@@ -388,4 +387,3 @@ def create_other_user(_step, name, has_extra_perms, role_name):
 @step('I log out')
 def log_out(_step):
     world.visit('logout')
-

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

@@ -9,6 +9,7 @@ from opaque_keys import InvalidKeyError
 from opaque_keys.edx.locations import SlashSeparatedCourseKey
 from xmodule.modulestore import ModuleStoreEnum
 
+
 class Command(BaseCommand):
     help = '''Delete a MongoDB backed course'''
 

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

@@ -11,6 +11,8 @@ from django.db.utils import IntegrityError
 from student.roles import CourseInstructorRole, CourseStaffRole
 
 #------------ to run: ./manage.py cms populate_creators --settings=dev
+
+
 class Command(BaseCommand):
     """
     Script for granting existing course instructors course creator privileges.

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

@@ -10,4 +10,3 @@ class Command(BaseCommand):
             raise CommandError("restore_asset_from_trashcan requires one argument: <location>")
 
         restore_asset_from_trashcan(args[0])
-

cms/djangoapps/contentstore/tests/test_transcripts_utils.py

@@ -161,7 +161,6 @@ class TestDownloadYoutubeSubs(ModuleStoreTestCase):
     number = '999'
     display_name = 'Test course'
 
-
     def clear_sub_content(self, subs_id):
         """
         Remove, if subtitle content exists.
@@ -472,6 +471,7 @@ class TestYoutubeTranscripts(unittest.TestCase):
         self.assertEqual(transcripts, expected_transcripts)
         mock_get.assert_called_with('http://video.google.com/timedtext', params={'lang': 'en', 'v': 'good_youtube_id'})
 
+
 class TestTranscript(unittest.TestCase):
     """
     Tests for Transcript class e.g. different transcript conversions.
@@ -489,7 +489,6 @@ class TestTranscript(unittest.TestCase):
 
         """)
 
-
         self.sjson_transcript = textwrap.dedent("""\
             {
                 "start": [

cms/djangoapps/contentstore/tests/test_utils.py

@@ -86,6 +86,7 @@ class LMSLinksTestCase(TestCase):
         link = utils.get_lms_link_for_item(location)
         self.assertEquals(link, "//localhost:8000/courses/mitX/101/test/jump_to/i4x://mitX/101/course/test")
 
+
 class ExtraPanelTabTestCase(TestCase):
     """ Tests adding and removing extra course tabs. """
 

cms/djangoapps/contentstore/views/checklist.py

@@ -124,6 +124,7 @@ def expand_checklist_action_url(course_module, checklist):
 
     return expanded_checklist
 
+
 def localize_checklist_text(checklist):
     """
     Localize texts for a given checklist and returns the modified version.

cms/djangoapps/contentstore/views/course.py

@@ -261,6 +261,7 @@ def course_rerun_handler(request, course_key_string):
                 'allow_unicode_course_id': settings.FEATURES.get('ALLOW_UNICODE_COURSE_ID', False)
             })
 
+
 def _course_outline_json(request, course_module):
     """
     Returns a JSON representation of the course module and recursively all of its children.

cms/djangoapps/contentstore/views/tabs.py

@@ -20,6 +20,7 @@ from ..utils import get_lms_link_for_item
 
 __all__ = ['tabs_handler']
 
+
 @expect_json
 @login_required
 @ensure_csrf_cookie
@@ -203,4 +204,3 @@ def primitive_insert(course, num, tab_type, name):
     tabs = course.tabs
     tabs.insert(num, new_tab)
     modulestore().update_item(course, ModuleStoreEnum.UserID.primitive_command)
-

cms/djangoapps/contentstore/views/user.py

@@ -100,7 +100,6 @@ def _course_team_user(request, course_key, email):
         }
         return JsonResponse(msg, 400)
 
-
     try:
         user = User.objects.get(email=email)
     except Exception:

cms/djangoapps/models/settings/course_details.py

@@ -11,6 +11,7 @@ from models.settings import course_grading
 from xmodule.fields import Date
 from xmodule.modulestore.django import modulestore
 
+
 class CourseDetails(object):
     def __init__(self, org, course_id, run):
         # still need these for now b/c the client's screen shows these 3 fields

cms/wsgi.py

@@ -17,4 +17,3 @@ startup.run()
 # as well as any WSGI server configured to use this file.
 from django.core.wsgi import get_wsgi_application
 application = get_wsgi_application()
-

common/djangoapps/contentserver/middleware.py

@@ -22,6 +22,7 @@ from xmodule.exceptions import NotFoundError
 
 log = logging.getLogger(__name__)
 
+
 class StaticContentServer(object):
     def process_request(self, request):
         # look to see if the request is prefixed with an asset prefix tag

common/djangoapps/course_groups/cohorts.py

@@ -322,6 +322,7 @@ def add_cohort(course_key, name):
     )
     return cohort
 
+
 def add_user_to_cohort(cohort, username_or_email):
     """
     Look up the given user, and if successful, add them to the specified cohort.

common/djangoapps/course_groups/tests/test_views.py

@@ -209,6 +209,7 @@ class ListCohortsTestCase(CohortViewsTestCase):
             actual_cohorts,
         )
 
+
 class AddCohortTestCase(CohortViewsTestCase):
     """
     Tests the `add_cohort` view.

common/djangoapps/course_modes/tests/test_views.py

@@ -150,7 +150,6 @@ class CourseModeViewTest(ModuleStoreTestCase):
         response = self.client.get(choose_track_url)
         self.assertRedirects(response, reverse('dashboard'))
 
-
     # Mapping of course modes to the POST parameters sent
     # when the user chooses that mode.
     POST_PARAMS_FOR_COURSE_MODE = {

common/djangoapps/dark_lang/tests.py

@@ -144,7 +144,6 @@ class DarkLangMiddlewareTests(TestCase):
             self.process_request(accept='rel-ter;q=1.0, rel;q=0.5')
         )
 
-
     def assertSessionLangEquals(self, value, request):
         """
         Assert that the 'django_language' set in request.session is equal to value

common/djangoapps/django_comment_common/tests.py

@@ -4,6 +4,7 @@ from opaque_keys.edx.locations import SlashSeparatedCourseKey
 from django_comment_common.models import Role
 from student.models import CourseEnrollment, User
 
+
 class RoleAssignmentTest(TestCase):
     """
     Basic checks to make sure our Roles get assigned and unassigned as students

common/djangoapps/edxmako/makoloader.py

@@ -34,7 +34,6 @@ class MakoLoader(object):
 
         self.module_directory = module_directory
 
-
     def __call__(self, template_name, template_dirs=None):
         return self.load_template(template_name, template_dirs)
 

common/djangoapps/edxmako/paths.py

@@ -32,6 +32,7 @@ def clear_lookups(namespace):
     if namespace in LOOKUP:
         del LOOKUP[namespace]
 
+
 def add_lookup(namespace, directory, package=None, prepend=False):
     """
     Adds a new mako template lookup directory to the given namespace.

common/djangoapps/edxmako/shortcuts.py

@@ -76,6 +76,7 @@ def marketing_link_context_processor(request):
         ]
     )
 
+
 def open_source_footer_context_processor(request):
     """
     Checks the site name to determine whether to use the edX.org footer or the Open Source Footer.
@@ -97,6 +98,7 @@ def microsite_footer_context_processor(request):
         ]
     )
 
+
 def render_to_string(template_name, dictionary, context=None, namespace='main'):
 
     # see if there is an override template defined in the microsite

common/djangoapps/edxmako/tests.py

@@ -19,6 +19,7 @@ from edxmako.shortcuts import (
 from student.tests.factories import UserFactory
 from util.testing import UrlResetMixin
 
+
 @ddt.ddt
 class ShortcutsTests(UrlResetMixin, TestCase):
     """

common/djangoapps/embargo/tests/test_middleware.py

@@ -28,6 +28,7 @@ from embargo.models import EmbargoedCourse, EmbargoedState, IPFilter
 # that disables the XML modulestore.
 MODULESTORE_CONFIG = mixed_store_config(settings.COMMON_TEST_DATA_ROOT, {}, include_xml=False)
 
+
 @ddt.ddt
 @override_settings(MODULESTORE=MODULESTORE_CONFIG)
 @unittest.skipUnless(settings.ROOT_URLCONF == 'lms.urls', 'Test only valid in lms')

common/djangoapps/external_auth/tests/test_ssl.py

@@ -37,6 +37,7 @@ FEATURES_WITHOUT_SSL_AUTH['AUTH_USE_CERTIFICATES'] = False
 
 TEST_DATA_MIXED_MODULESTORE = mixed_store_config(settings.COMMON_TEST_DATA_ROOT, {})
 
+
 @override_settings(FEATURES=FEATURES_WITH_SSL_AUTH)
 class SSLClientTest(ModuleStoreTestCase):
     """

common/djangoapps/heartbeat/tests/test_heartbeat.py

@@ -8,6 +8,7 @@ from django.db.utils import DatabaseError
 import mock
 from django.test.testcases import TestCase
 
+
 class HeartbeatTestCase(TestCase):
     """
     Test the heartbeat

common/djangoapps/microsite_configuration/templatetags/microsite.py

@@ -23,6 +23,7 @@ def page_title_breadcrumbs(*crumbs, **kwargs):
     else:
         return platform_name()
 
+
 @register.simple_tag(name="page_title_breadcrumbs", takes_context=True)
 def page_title_breadcrumbs_tag(context, *crumbs):
     """

common/djangoapps/monitoring/signals.py

@@ -78,6 +78,7 @@ def post_save_metrics(sender, **kwargs):
     tags = _database_tags(action, sender, kwargs)
     dog_stats_api.increment('edxapp.db.model', tags=tags)
 
+
 @receiver(post_delete, dispatch_uid='edxapp.monitoring.post_delete_metrics')
 def post_delete_metrics(sender, **kwargs):
     """

common/djangoapps/monitoring/startup.py

 # Register signal handlers
 import signals
-import exceptions
\ No newline at end of file
+import exceptions

common/djangoapps/request_cache/middleware.py

@@ -3,11 +3,12 @@ import threading
 _request_cache_threadlocal = threading.local()
 _request_cache_threadlocal.data = {}
 
+
 class RequestCache(object):
     @classmethod
     def get_request_cache(cls):
         return _request_cache_threadlocal
-            
+
     def clear_request_cache(self):
         _request_cache_threadlocal.data = {}
 
@@ -17,4 +18,4 @@ class RequestCache(object):
 
     def process_response(self, request, response):
         self.clear_request_cache()
-        return response
\ No newline at end of file
+        return response

common/djangoapps/status/tests.py

@@ -36,7 +36,6 @@ class TestStatus(TestCase):
         "edX/toy/2012_Fall" : "A toy story"
         }"""
 
-
     # json to use, expected results for course=None (e.g. homepage),
     # for toy course, for full course.  Note that get_site_status_msg
     # is supposed to return global message even if course=None.  The

common/djangoapps/student/auth.py

@@ -83,4 +83,3 @@ def _check_caller_authority(caller, role):
     elif isinstance(role, CourseRole):  # instructors can change the roles w/in their course
         if not has_access(caller, CourseInstructorRole(role.course_key)):
             raise PermissionDenied
-

common/djangoapps/student/forms.py

@@ -22,4 +22,4 @@ class PasswordResetFormNoActive(PasswordResetForm):
         if any((user.password == UNUSABLE_PASSWORD)
                for user in self.users_cache):
             raise forms.ValidationError(self.error_messages['unusable'])
-        return email
\ No newline at end of file
+        return email

common/djangoapps/student/management/commands/anonymized_id_mapping.py

@@ -65,4 +65,3 @@ class Command(BaseCommand):
                     ))
         except IOError:
             raise CommandError("Error writing to file: %s" % output_filename)
-

common/djangoapps/student/middleware.py

@@ -7,6 +7,7 @@ from django.utils.translation import ugettext as _
 from django.conf import settings
 from student.models import UserStanding
 
+
 class UserStandingMiddleware(object):
     """
     Checks a user's standing on request. Returns a 403 if the user's

common/djangoapps/student/migrations/0041_add_dashboard_config.py

@@ -18,12 +18,10 @@ class Migration(SchemaMigration):
         ))
         db.send_create_signal('student', ['DashboardConfiguration'])
 
-
     def backwards(self, orm):
         # Deleting model 'DashboardConfiguration'
         db.delete_table('student_dashboardconfiguration')
 
-
     models = {
         'auth.group': {
             'Meta': {'object_name': 'Group'},
@@ -176,4 +174,4 @@ class Migration(SchemaMigration):
         }
     }
 
-    complete_apps = ['student']
\ No newline at end of file
+    complete_apps = ['student']

common/djangoapps/student/models.py

@@ -665,15 +665,19 @@ class LoginFailures(models.Model):
 class CourseEnrollmentException(Exception):
     pass
 
+
 class NonExistentCourseError(CourseEnrollmentException):
     pass
 
+
 class EnrollmentClosedError(CourseEnrollmentException):
     pass
 
+
 class CourseFullError(CourseEnrollmentException):
     pass
 
+
 class AlreadyEnrolledError(CourseEnrollmentException):
     pass
 

common/djangoapps/student/roles.py

@@ -210,6 +210,7 @@ class CourseFinanceAdminRole(CourseRole):
     def __init__(self, *args, **kwargs):
         super(CourseFinanceAdminRole, self).__init__(self.ROLE, *args, **kwargs)
 
+
 class CourseBetaTesterRole(CourseRole):
     """A course Beta Tester"""
     ROLE = 'beta_testers'

common/djangoapps/student/tests/test_auto_auth.py

@@ -11,6 +11,7 @@ from opaque_keys.edx.locator import CourseLocator
 from mock import patch
 import ddt
 
+
 @ddt.ddt
 class AutoAuthEnabledTestCase(UrlResetMixin, TestCase):
     """

common/djangoapps/student/tests/test_microsite.py

@@ -25,6 +25,7 @@ FAKE_MICROSITE = {
     ]
 }
 
+
 def fake_site_name(name, default=None):  # pylint: disable=W0613
     """
     create a fake microsite site name
@@ -34,12 +35,14 @@ def fake_site_name(name, default=None):  # pylint: disable=W0613
     else:
         return default
 
+
 def fake_microsite_get_value(name, default=None):  # pylint: disable=W0613
     """
     create a fake microsite site name
     """
     return FAKE_MICROSITE.get(name, default)
 
+
 class TestMicrosite(TestCase):
     """Test for Account Creation from a white labeled Micro-Sites"""
     def setUp(self):

common/djangoapps/student/tests/test_password_policy.py

@@ -15,6 +15,7 @@ from edxmako.tests import mako_middleware_process_request
 from external_auth.models import ExternalAuthMap
 from student.views import create_account
 
+
 @patch.dict("django.conf.settings.FEATURES", {'ENFORCE_PASSWORD_POLICY': True})
 class TestPasswordPolicy(TestCase):
     """

common/djangoapps/terrain/stubs/comments.py

@@ -6,6 +6,7 @@ import re
 import urlparse
 from .http import StubHttpRequestHandler, StubHttpService
 
+
 class StubCommentsServiceHandler(StubHttpRequestHandler):
 
     @property

common/djangoapps/terrain/stubs/lti.py

@@ -21,6 +21,7 @@ import mock
 import requests
 from http import StubHttpRequestHandler, StubHttpService
 
+
 class StubLtiHandler(StubHttpRequestHandler):
     """
     A handler for LTI POST and GET requests.

common/djangoapps/terrain/stubs/ora.py

@@ -300,7 +300,6 @@ class StubOraHandler(StubHttpRequestHandler):
         """
         self._success_response({'problem_list': self.server.problem_list})
 
-
     @require_params('POST', 'grader_id', 'location', 'submission_id', 'score', 'feedback', 'submission_key')
     def _save_grade(self):
         """
@@ -421,7 +420,6 @@ class StubOraHandler(StubHttpRequestHandler):
                 )
                 self.send_response(400)
 
-
     def _student(self, method, key='student_id'):
         """
         Return the `StudentState` instance for the student ID given

common/djangoapps/terrain/stubs/tests/test_lti_stub.py

@@ -7,6 +7,7 @@ import urllib2
 import requests
 from terrain.stubs.lti import StubLtiService
 
+
 class StubLtiServiceTest(unittest.TestCase):
     """
     A stub of the LTI provider that listens on a local

common/djangoapps/terrain/stubs/video_source.py

@@ -9,6 +9,7 @@ import os
 from logging import getLogger
 LOGGER = getLogger(__name__)
 
+
 class VideoSourceRequestHandler(SimpleHTTPRequestHandler):
     """
     Request handler for serving video sources locally.

common/djangoapps/user_api/tests/factories.py

@@ -5,6 +5,7 @@ from student.tests.factories import UserFactory
 from user_api.models import UserPreference, UserCourseTag
 from opaque_keys.edx.locations import SlashSeparatedCourseKey
 
+
 # Factories don't have __init__ methods, and are self documenting
 # pylint: disable=W0232, C0111
 class UserPreferenceFactory(DjangoModelFactory):

common/djangoapps/user_api/tests/test_account_api.py

@@ -298,7 +298,7 @@ class AccountApiTest(TestCase):
         if create_inactive_account:
             # Create an account, but do not activate it
             account_api.create_account(self.USERNAME, self.PASSWORD, self.EMAIL)
-        
+
         account_api.request_password_change(self.EMAIL, self.ORIG_HOST, self.IS_SECURE)
 
         # Verify that no email messages have been sent

common/djangoapps/util/bad_request_rate_limiter.py

@@ -4,6 +4,7 @@ which can be used for rate limiting
 """
 from ratelimitbackend.backends import RateLimitMixin
 
+
 class BadRequestRateLimiter(RateLimitMixin):
     """
     Use the 3rd party RateLimitMixin to help do rate limiting on the Password Reset flows

common/djangoapps/util/models.py

 # Create your models here.
-

common/djangoapps/util/query.py

@@ -6,4 +6,4 @@ def use_read_replica_if_available(queryset):
     """
     If there is a database called 'read_replica', use that database for the queryset.
     """
-    return queryset.using("read_replica") if "read_replica" in settings.DATABASES else queryset
\ No newline at end of file
+    return queryset.using("read_replica") if "read_replica" in settings.DATABASES else queryset

common/djangoapps/util/string_utils.py

@@ -2,6 +2,7 @@
 Utilities for string manipulation.
 """
 
+
 def str_to_bool(str):
     """
     Converts "true" (case-insensitive) to the boolean True.

common/djangoapps/util/tests/__init__.py

-

common/djangoapps/util/tests/test_string_utils.py

@@ -5,6 +5,7 @@ Tests for string_utils.py
 from django.test import TestCase
 from util.string_utils import str_to_bool
 
+
 class StringUtilsTest(TestCase):
     """
     Tests for str_to_bool.

common/lib/calc/calc/tests/test_calc.py

@@ -14,6 +14,7 @@ from pyparsing import ParseException
 # See http://docs.scipy.org/doc/numpy/reference/generated/numpy.seterr.html
 numpy.seterr(all='ignore')  # Also: 'ignore', 'warn' (default), 'raise'
 
+
 class EvaluatorTest(unittest.TestCase):
     """
     Run tests for calc.evaluator

common/lib/capa/capa/correctmap.py

@@ -165,7 +165,6 @@ class CorrectMap(object):
         self.cmap.update(other_cmap.get_dict())
         self.set_overall_message(other_cmap.get_overall_message())
 
-
     def set_overall_message(self, message_str):
         """ Set a message that applies to the question as a whole,
             rather than to individual inputs. """

common/lib/capa/capa/customrender.py

@@ -50,7 +50,6 @@ class MathRenderer(object):
             mathstr = mathstr.replace(r'\displaystyle', '')
         self.mathstr = mathstr.replace('mathjaxinline]', '%s]' % mtag)
 
-
     def get_html(self):
         """
         Return the contents of this tag, rendered to html, as an etree element.

common/lib/capa/capa/inputtypes.py

@@ -839,7 +839,6 @@ class MatlabInput(CodeInput):
                     'No response from Xqueue within {xqueue_timeout} seconds. Aborted.'
                 ).format(xqueue_timeout=XQUEUE_TIMEOUT)
 
-
     def handle_ajax(self, dispatch, data):
         """
         Handle AJAX calls directed to this input

common/lib/capa/capa/registry.py

 """A registry for finding classes based on tags in the class."""
 
+
 class TagRegistry(object):
     """
     A registry mapping tags to handlers.

common/lib/capa/capa/safe_exec/lazymod.py

@@ -7,6 +7,7 @@ in the public domain.
 
 import sys
 
+
 class LazyModule(object):
     """A lazy module proxy."""
 

common/lib/capa/capa/tests/test_input_templates.py

@@ -11,6 +11,7 @@ from mako.template import Template as MakoTemplate
 from mako import exceptions
 from capa.inputtypes import Status
 
+
 class TemplateError(Exception):
     """
     Error occurred while rendering a Mako template.
@@ -497,6 +498,7 @@ class FormulaEquationInputTemplateTest(TemplateTestCase):
 
         self.assert_has_xpath(xml, "//input[@size='40']", self.context)
 
+
 class AnnotationInputTemplateTest(TemplateTestCase):
     """
     Test mako template for `<annotationinput>` input.

common/lib/capa/capa/tests/test_inputtypes.py

@@ -604,7 +604,6 @@ class MatlabTest(unittest.TestCase):
         the_input = self.input_class(test_capa_system(), elt, state)
         self.assertEqual(the_input.status, 'queued')
 
-
     @patch('capa.inputtypes.time.time', return_value=45)
     def test_matlab_response_timeout_exceeded(self, time):
 

common/lib/capa/capa/tests/test_responsetypes.py

@@ -606,7 +606,6 @@ class StringResponseTest(ResponseTest):
         self.assert_grade(problem, u"î", "incorrect")
         self.assert_grade(problem, u"o", "incorrect")
 
-
     def test_backslash_and_unicode_regexps(self):
         """
         Test some special cases of [unicode] regexps.
@@ -1042,8 +1041,6 @@ class CodeResponseTest(ResponseTest):
                 self.assertEquals(output[answer_id]['msg'], u'Invalid grader reply. Please contact the course staff.')
 
 
-
-
 class ChoiceResponseTest(ResponseTest):
     from capa.tests.response_xml_factory import ChoiceResponseXMLFactory
     xml_factory_class = ChoiceResponseXMLFactory

common/lib/capa/capa/tests/test_util.py

@@ -82,7 +82,6 @@ class UtilTest(unittest.TestCase):
         result = compare_with_tolerance(infinity, infinity, '1.0', False)
         self.assertTrue(result)
 
-
     def test_sanitize_html(self):
         """
         Test for html sanitization with bleach.

common/lib/chem/chem/chemcalc.py

@@ -192,7 +192,6 @@ def _render_to_html(tree):
             return children.replace(' ', '')
 
 
-
 def render_to_html(eq):
     '''
     Render a chemical equation string to html.
@@ -231,7 +230,6 @@ def render_to_html(eq):
         # only one side
         return spanify(render_expression(left))
 
-
     return spanify(render_expression(left) + render_arrow(arrow) + render_expression(right))
 
 

common/lib/chem/chem/tests.py

@@ -64,7 +64,6 @@ class Test_Compare_Equations(unittest.TestCase):
         self.assertFalse(chemical_equations_equal('H2O( -> H2O2',
                                                   'H2O -> H2O2'))
 
-
         self.assertFalse(chemical_equations_equal('H2 + O2 ==> H2O2',   # strange arrow
                                                   '2O2 + 2H2 -> 2H2O2'))
 

common/lib/django_startup.py

@@ -5,6 +5,7 @@ Automatic execution of startup modules in Django apps.
 from importlib import import_module
 from django.conf import settings
 
+
 def autostartup():
     """
     Execute app.startup:run() for all installed django apps

common/lib/symmath/symmath/formula.py

@@ -257,7 +257,6 @@ class formula(object):
 
         fix_pmathml(xml)
 
-
         def fix_hat(xml):
             """
             hat i is turned into <mover><mi>i</mi><mo>^</mo></mover> ; mangle

common/lib/symmath/symmath/test_symmath_check.py

 from unittest import TestCase
 from .symmath_check import symmath_check
 
+
 class SymmathCheckTest(TestCase):
     def test_symmath_check_integers(self):
         number_list = [i for i in range(-100, 100)]

common/lib/tempdir.py

@@ -5,12 +5,14 @@ import os.path
 import shutil
 import tempfile
 
+
 def mkdtemp_clean(suffix="", prefix="tmp", dir=None):
     """Just like mkdtemp, but the directory will be deleted when the process ends."""
     the_dir = tempfile.mkdtemp(suffix=suffix, prefix=prefix, dir=dir)
     atexit.register(cleanup_tempdir, the_dir)
     return the_dir
 
+
 def cleanup_tempdir(the_dir):
     """Called on process exit to remove a temp directory."""
     if os.path.exists(the_dir):

common/lib/xmodule/xmodule/annotator_mixin.py

@@ -7,6 +7,7 @@ from urlparse import urlparse
 from os.path import splitext, basename
 from HTMLParser import HTMLParser
 
+
 def get_instructions(xmltree):
     """ Removes <instructions> from the xmltree and returns them as a string, otherwise None. """
     instructions = xmltree.find('instructions')

common/lib/xmodule/xmodule/course_module.py

@@ -28,6 +28,7 @@ CATALOG_VISIBILITY_CATALOG_AND_ABOUT = "both"
 CATALOG_VISIBILITY_ABOUT = "about"
 CATALOG_VISIBILITY_NONE = "none"
 
+
 class StringOrDate(Date):
     def from_json(self, value):
         """
@@ -589,6 +590,7 @@ class CourseFields(object):
             {"display_name": _("None"), "value": CATALOG_VISIBILITY_NONE}]
     )
 
+
 class CourseDescriptor(CourseFields, SequenceDescriptor):
     module_class = SequenceModule
 

common/lib/xmodule/xmodule/exceptions.py

@@ -48,7 +48,6 @@ class HeartbeatFailure(Exception):
     def __unicode__(self, *args, **kwargs):
         return self.message
 
-
     def __init__(self, msg, service):
         """
         In addition to a msg, provide the name of the service.

common/lib/xmodule/xmodule/lti_module.py

@@ -752,7 +752,6 @@ oauth_consumer_key="", oauth_signature="frVp4JuvT1mVXlxktiAUjQ7%2F1cw%3D"'}
         log.debug("[LTI]: Incorrect action.")
         return Response(response_xml_template.format(**unsupported_values), content_type='application/xml')
 
-
     @classmethod
     def parse_grade_xml_body(cls, body):
         """
@@ -842,6 +841,7 @@ oauth_consumer_key="", oauth_signature="frVp4JuvT1mVXlxktiAUjQ7%2F1cw%3D"'}
                 return key, secret
         return '', ''
 
+
 class LTIDescriptor(LTIFields, MetadataOnlyEditingDescriptor, EmptyDataRawDescriptor):
     """
     Descriptor for LTI Xmodule.

common/lib/xmodule/xmodule/mako_module.py

@@ -39,4 +39,3 @@ class MakoModuleDescriptor(XModuleDescriptor):
     def get_html(self):
         return self.system.render_template(
             self.mako_template, self.get_context())
-

common/lib/xmodule/xmodule/modulestore/split_mongo/__init__.py

@@ -14,7 +14,6 @@ class BlockKey(namedtuple('BlockKey', 'type id')):
     def __new__(cls, type, id):
         return super(BlockKey, cls).__new__(cls, type, id)
 
-
     @classmethod
     @contract(usage_key=BlockUsageLocator)
     def from_usage_key(cls, usage_key):

common/lib/xmodule/xmodule/modulestore/split_mongo/split.py

@@ -1442,6 +1442,7 @@ class SplitMongoModuleStore(SplitBulkWriteMixin, ModuleStoreWriteBase):
         return new_course
 
     DEFAULT_ROOT_BLOCK_ID = 'course'
+
     def create_course(
         self, org, course, run, user_id, master_branch=None, fields=None,
         versions_dict=None, search_targets=None, root_category='course',
@@ -2689,6 +2690,7 @@ class SplitMongoModuleStore(SplitBulkWriteMixin, ModuleStoreWriteBase):
         """
         self.db_connection.ensure_indexes()
 
+
 class SparseList(list):
     """
     Enable inserting items into a list in arbitrary order and then retrieving them.

common/lib/xmodule/xmodule/modulestore/split_mongo/split_mongo_kvs.py

@@ -38,7 +38,6 @@ class SplitMongoKVS(InheritanceKeyValueStore):
 
         self.parent = parent
 
-
     def get(self, key):
         # load the field, if needed
         if key.field_name not in self._fields:

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

@@ -8,6 +8,7 @@ from opaque_keys.edx.keys import UsageKey
 # Factories don't have __init__ methods, and are self documenting
 # pylint: disable=W0232, C0111
 
+
 class SplitFactory(factory.Factory):
     """
     Abstracted superclass which defines modulestore so that there's no dependency on django

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

@@ -12,6 +12,7 @@ from xmodule.modulestore.modulestore_settings import (
     get_mixed_stores,
 )
 
+
 @ddt.ddt
 class ModuleStoreSettingsMigration(TestCase):
     """
@@ -114,7 +115,6 @@ class ModuleStoreSettingsMigration(TestCase):
         }
     }
 
-
     def assertStoreValuesEqual(self, store_setting1, store_setting2):
         """
         Tests whether the fields in the given store_settings are equal.

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

@@ -439,6 +439,7 @@ class TestBulkWriteMixinFindMethods(TestBulkWriteMixin):
         def db_structure(_id):
             previous, _, current = _id.partition('.')
             return {'db': 'structure', 'previous_version': previous, '_id': current}
+
         def active_structure(_id):
             previous, _, current = _id.partition('.')
             return {'active': 'structure', 'previous_version': previous, '_id': current}

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

@@ -188,7 +188,6 @@ def adapt_references(subtree, destination_course_key, export_fs):
                 )
 
 
-
 def _export_field_content(xblock_item, item_dir):
     """
     Export all fields related to 'xblock_item' other than 'metadata' and 'data' to json file in provided directory

common/lib/xmodule/xmodule/modulestore/xml_importer.py

@@ -390,6 +390,7 @@ def _import_static_content_wrapper(static_content_store, do_import_static, cours
             dest_course_id, subpath=simport, verbose=verbose
         )
 
+
 def _import_module_and_update_references(
         module, store, user_id,
         source_course_id, dest_course_id,

common/lib/xmodule/xmodule/open_ended_grading_classes/controller_query_service.py

@@ -168,6 +168,7 @@ class MockControllerQueryService(object):
         """
         pass
 
+
 def convert_seconds_to_human_readable(seconds):
     if seconds < 60:
         human_string = "{0} seconds".format(seconds)

common/lib/xmodule/xmodule/randomize_module.py

@@ -77,7 +77,6 @@ class RandomizeModule(RandomizeFields, XModule):
 
         return [self.child_descriptor]
 
-
     def student_view(self, context):
         if self.child is None:
             # raise error instead?  In fact, could complain on descriptor load...
@@ -95,7 +94,6 @@ class RandomizeDescriptor(RandomizeFields, SequenceDescriptor):
 
     filename_extension = "xml"
 
-
     def definition_to_xml(self, resource_fs):
 
         xml_object = etree.Element('randomize')

common/lib/xmodule/xmodule/split_test_module.py

@@ -357,6 +357,7 @@ class SplitTestModule(SplitTestFields, XModule, StudioEditableModule):
         """
         return self.descriptor.validate()
 
+
 @XBlock.needs('user_tags')  # pylint: disable=abstract-method
 @XBlock.wants('partitions')
 @XBlock.wants('user')

common/lib/xmodule/xmodule/tabs.py

@@ -225,6 +225,7 @@ class StaffTab(AuthenticatedCourseTab):
     def can_display(self, course, settings, is_user_authenticated, is_user_staff, is_user_enrolled):  # pylint: disable=unused-argument
         return is_user_staff
 
+
 class EnrolledOrStaffTab(CourseTab):
     """
     Abstract class for tabs that can be accessed by only users with staff access

common/lib/xmodule/xmodule/template_module.py

@@ -60,7 +60,6 @@ class CustomTagDescriptor(RawDescriptor):
         template = Template(template_module_data)
         return template.render(**params)
 
-
     @property
     def rendered_html(self):
         return self.render_template(self.system, self.data)

common/lib/xmodule/xmodule/tests/rendering/core.py

@@ -40,6 +40,7 @@ import lxml.etree
 
 from singledispatch import singledispatch
 
+
 @singledispatch
 def assert_student_view_valid_html(block, html):
     """

common/lib/xmodule/xmodule/tests/test_bulk_assertions.py

 import ddt
 from xmodule.tests import BulkAssertionTest
 
+
 @ddt.ddt
 class TestBulkAssertionTestCase(BulkAssertionTest):
 
@@ -21,7 +22,6 @@ class TestBulkAssertionTestCase(BulkAssertionTest):
     def test_passing_asserts_passthrough(self, assertion, *args):
         getattr(self, assertion)(*args)
 
-
     @ddt.data(
         ('assertTrue', False),
         ('assertFalse', True),

common/lib/xmodule/xmodule/tests/test_capa_module.py

@@ -142,6 +142,7 @@ class CapaFactory(object):
 
         return module
 
+
 class CapaFactoryWithFiles(CapaFactory):
     """
     A factory for creating a Capa problem with files attached.
@@ -1394,7 +1395,6 @@ class CapaModuleTest(unittest.TestCase):
         Run the test for each possible rerandomize value
         """
 
-
         def _reset_and_get_seed(module):
             """
             Reset the XModule and return the module's seed

common/lib/xmodule/xmodule/tests/test_content.py

@@ -44,6 +44,7 @@ Various versions have evolved over the years, sometimes by accident, sometimes o
 injected humour and the like).
 """
 
+
 class Content:
     def __init__(self, location, content_type):
         self.location = location

common/lib/xmodule/xmodule/tests/test_editing_module.py

@@ -65,4 +65,3 @@ class TabsEditingDescriptorTestCase(unittest.TestCase):
         """"test get_context"""
         rendered_context = self.descriptor.get_context()
         self.assertListEqual(rendered_context['tabs'], self.tabs)
-

common/lib/xmodule/xmodule/tests/test_import.py

@@ -150,7 +150,6 @@ class ImportTestCase(BaseCourseTestCase):
 
         self.assertNotEqual(descriptor1.location, descriptor2.location)
 
-
     def test_reimport(self):
         '''Make sure an already-exported error xml tag loads properly'''
 

common/lib/xmodule/xmodule/tests/test_utils_django.py

@@ -3,6 +3,7 @@ from xmodule.util.django import get_current_request, get_current_request_hostnam
 from nose.tools import assert_is_none
 from unittest import TestCase
 
+
 class UtilDjangoTests(TestCase):
     """
     Tests for methods exposed in util/django

common/lib/xmodule/xmodule/tests/test_word_cloud.py

@@ -46,4 +46,3 @@ class WordCloudModuleTest(LogicTest):
         self.assertEqual(
             100.0,
             sum(i['percent'] for i in response['top_words']))
-

common/lib/xmodule/xmodule/timeinfo.py

@@ -2,6 +2,7 @@ import logging
 from xmodule.fields import Timedelta
 log = logging.getLogger(__name__)
 
+
 class TimeInfo(object):
     """
     This is a simple object that calculates and stores datetime information for an XModule
@@ -14,6 +15,7 @@ class TimeInfo(object):
 
     """
     _delta_standin = Timedelta()
+
     def __init__(self, due_date, grace_period_string_or_timedelta):
         if due_date is not None:
             self.display_due_date = due_date

common/lib/xmodule/xmodule/video_module/transcripts_utils.py

@@ -75,6 +75,7 @@ def save_to_store(content, name, mime_type, location):
     contentstore().save(content)
     return content_location
 
+
 def save_subs_to_store(subs, subs_id, item, language='en'):
     """
     Save transcripts into `StaticContent`.
@@ -90,6 +91,7 @@ def save_subs_to_store(subs, subs_id, item, language='en'):
     filename = subs_filename(subs_id, language)
     return save_to_store(filedata, filename, 'application/json', item.location)
 
+
 def get_transcripts_from_youtube(youtube_id, settings, i18n):
     """
     Gets transcripts from youtube for youtube_id.
@@ -428,6 +430,7 @@ def get_or_create_sjson(item):
     sjson_transcript = Transcript.asset(item.location, source_subs_id, item.transcript_language).data
     return sjson_transcript
 
+
 class Transcript(object):
     """
     Container for transcript methods.

common/lib/xmodule/xmodule/x_module.py

@@ -211,7 +211,6 @@ class XModuleMixin(XBlockMixin):
     def runtime(self, value):
         self._runtime = value
 
-
     @property
     def system(self):
         """
@@ -719,7 +718,6 @@ class XModuleDescriptor(XModuleMixin, HTMLSnippet, ResourceTemplates, XBlock):
     entry_point = "xmodule.v1"
     module_class = XModule
 
-
     # VS[compat].  Backwards compatibility code that can go away after
     # importing 2012 courses.
     # A set of metadata key conversions that we want to make
@@ -835,7 +833,6 @@ class XModuleDescriptor(XModuleMixin, HTMLSnippet, ResourceTemplates, XBlock):
         """
         pass
 
-
     # =============================== BUILTIN METHODS ==========================
     def __eq__(self, other):
         return (self.scope_ids == other.scope_ids and

common/test/acceptance/fixtures/discussion.py

@@ -42,6 +42,7 @@ class Thread(ContentFactory):
     pinned = False
     read = False
 
+
 class Comment(ContentFactory):
     thread_id = None
     depth = 0