diff --git a/common/djangoapps/entitlements/models.py b/common/djangoapps/entitlements/models.py
index 08e9369038..348c87f92a 100644
--- a/common/djangoapps/entitlements/models.py
+++ b/common/djangoapps/entitlements/models.py
@@ -444,7 +444,7 @@ class CourseEntitlement(TimeStampedModel):
         refund_successful = refund_entitlement(course_entitlement=self)
         if not refund_successful:
             # This state is achieved in most cases by a failure in the ecommerce service to process the refund.
-            log.warn(
+            log.warning(
                 u'Entitlement Refund failed for Course Entitlement [%s], alert User',
                 self.uuid
             )
diff --git a/common/lib/xmodule/xmodule/conditional_module.py b/common/lib/xmodule/xmodule/conditional_module.py
index bb3f141caf..cd45d7b835 100644
--- a/common/lib/xmodule/xmodule/conditional_module.py
+++ b/common/lib/xmodule/xmodule/conditional_module.py
@@ -166,7 +166,7 @@ class ConditionalModule(ConditionalFields, XModule, StudioEditableModule):
                     if module is not None:
                         # We do not want to log when module is None, and it is when requester
                         # does not have access to the requested required module.
-                        log.warn('Error in conditional module: \
+                        log.warning('Error in conditional module: \
                             required module {module} has no {module_attr}'.format(module=module, module_attr=attr_name))
                     return False
 
diff --git a/common/lib/xmodule/xmodule/modulestore/split_migrator.py b/common/lib/xmodule/xmodule/modulestore/split_migrator.py
index 1fcc9f8645..68af627aca 100644
--- a/common/lib/xmodule/xmodule/modulestore/split_migrator.py
+++ b/common/lib/xmodule/xmodule/modulestore/split_migrator.py
@@ -170,7 +170,7 @@ class SplitMigrator(object):
                 draft_location, revision=ModuleStoreEnum.RevisionOption.draft_preferred, **kwargs
             )
             if parent_loc is None:
-                log.warn(u'No parent found in source course for %s', draft_location)
+                log.warning(u'No parent found in source course for %s', draft_location)
                 continue
             old_parent = self.source_modulestore.get_item(parent_loc, **kwargs)
             split_parent_loc = new_draft_course_loc.make_usage_key(
diff --git a/common/lib/xmodule/xmodule/video_module/video_utils.py b/common/lib/xmodule/xmodule/video_module/video_utils.py
index d05464ea68..8b6f0e3bee 100644
--- a/common/lib/xmodule/xmodule/video_module/video_utils.py
+++ b/common/lib/xmodule/xmodule/video_module/video_utils.py
@@ -69,7 +69,7 @@ def rewrite_video_url(cdn_base_url, original_video_url):
         validator(rewritten_url)
         return rewritten_url
     except ValidationError:
-        log.warn("Invalid CDN rewrite URL encountered, %s", rewritten_url)
+        log.warning("Invalid CDN rewrite URL encountered, %s", rewritten_url)
 
     # Mimic the behavior of removed get_video_from_cdn in this regard and
     # return None causing the caller to use the original URL.
diff --git a/lms/djangoapps/commerce/utils.py b/lms/djangoapps/commerce/utils.py
index 1c6ea8be4a..e82f469603 100644
--- a/lms/djangoapps/commerce/utils.py
+++ b/lms/djangoapps/commerce/utils.py
@@ -208,7 +208,7 @@ def refund_entitlement(course_entitlement):
             always_notify=True,
         )
     else:
-        log.warn(u'No refund opened for user [%s], course entitlement [%s]', enrollee.id, entitlement_uuid)
+        log.warning(u'No refund opened for user [%s], course entitlement [%s]', enrollee.id, entitlement_uuid)
         return False
 
 
diff --git a/openedx/core/djangoapps/course_date_signals/__init__.py b/openedx/core/djangoapps/course_date_signals/__init__.py
index e69de29bb2..4d9e1da841 100644
--- a/openedx/core/djangoapps/course_date_signals/__init__.py
+++ b/openedx/core/djangoapps/course_date_signals/__init__.py
@@ -0,0 +1,5 @@
+"""
+Django app to manage course content dates, and ingesting them into edx-when for later use by the LMS.
+"""
+
+default_app_config = 'openedx.core.djangoapps.course_date_signals.apps.CourseDatesSignalsConfig'  # pylint: disable=invalid-name
diff --git a/openedx/core/djangoapps/course_date_signals/apps.py b/openedx/core/djangoapps/course_date_signals/apps.py
index 70fb3a1526..17119d49e3 100644
--- a/openedx/core/djangoapps/course_date_signals/apps.py
+++ b/openedx/core/djangoapps/course_date_signals/apps.py
@@ -1,12 +1,12 @@
 """
-Django app configuration for openedx.core.djangoapps.course_dates_signals
+Django App Configuration for the course_date_signals app
 """
 
 from django.apps import AppConfig
 
 
 class CourseDatesSignalsConfig(AppConfig):
-    name = 'openedx.core.djangoapps.course_dates_signals'
+    name = 'openedx.core.djangoapps.course_date_signals'
 
     def ready(self):
         """
diff --git a/openedx/core/djangoapps/course_date_signals/handlers.py b/openedx/core/djangoapps/course_date_signals/handlers.py
index 2544356bd0..f88648d32a 100644
--- a/openedx/core/djangoapps/course_date_signals/handlers.py
+++ b/openedx/core/djangoapps/course_date_signals/handlers.py
@@ -7,18 +7,17 @@ from django.dispatch import receiver
 from six import text_type
 from xblock.fields import Scope
 from xmodule.modulestore.django import SignalHandler, modulestore
-
 from edx_when.api import FIELDS_TO_EXTRACT, set_dates_for_course
 
 log = logging.getLogger(__name__)
 
 
-def date_field_values(date_fields, xblock):
+def _field_values(fields, xblock):
     """
-    Read field values for the specified date fields from the supplied xblock.
+    Read field values for the specified fields from the supplied xblock.
     """
     result = {}
-    for field_name in date_fields:
+    for field_name in fields:
         if field_name not in xblock.fields:
             continue
         field = xblock.fields[field_name]
@@ -39,18 +38,18 @@ def extract_dates_from_course(course):
     """
     Extract all dates from the supplied course.
     """
-    log.info('Publishing course dates for %s', course.id)
+    log.info('Extracting course dates for %s', course.id)
     if course.self_paced:
-        metadata = date_field_values(FIELDS_TO_EXTRACT, course)
+        metadata = _field_values(FIELDS_TO_EXTRACT, course)
         # self-paced courses may accidentally have a course due date
         metadata.pop('due', None)
         date_items = [(course.location, metadata)]
     else:
         date_items = []
         items = modulestore().get_items(course.id)
-        log.info('extracting dates from %d items in %s', len(items), course.id)
+        log.info('Extracting dates from %d items in %s', len(items), course.id)
         for item in items:
-            date_items.append((item.location, date_field_values(FIELDS_TO_EXTRACT, item)))
+            date_items.append((item.location, _field_values(FIELDS_TO_EXTRACT, item)))
     return date_items
 
 
@@ -59,12 +58,10 @@ def extract_dates(sender, course_key, **kwargs):  # pylint: disable=unused-argum
     """
     Extract dates from blocks when publishing a course.
     """
-    log.info("Extracting dates from %s", course_key)
-
     course = modulestore().get_course(course_key)
 
     if not course:
-        log.info("No course found for key %s", course_key)
+        log.info("No course found for key %s to extract dates from", course_key)
         return
 
     date_items = extract_dates_from_course(course)
@@ -72,4 +69,4 @@ def extract_dates(sender, course_key, **kwargs):  # pylint: disable=unused-argum
     try:
         set_dates_for_course(course_key, date_items)
     except Exception:  # pylint: disable=broad-except
-        log.exception('setting dates for %s', course_key)
+        log.exception('Unable to set dates for %s on course publish', course_key)
diff --git a/openedx/core/djangoapps/django_comment_common/models.py b/openedx/core/djangoapps/django_comment_common/models.py
index 6f11b1165e..efd2709ead 100644
--- a/openedx/core/djangoapps/django_comment_common/models.py
+++ b/openedx/core/djangoapps/django_comment_common/models.py
@@ -1,4 +1,4 @@
-# pylint: disable=missing-docstring,unused-argument,model-missing-unicode
+# pylint: disable=missing-docstring,unused-argument
 
 
 import json
diff --git a/openedx/core/djangoapps/geoinfo/middleware.py b/openedx/core/djangoapps/geoinfo/middleware.py
index 6f0399d9ed..dbc01ec95a 100644
--- a/openedx/core/djangoapps/geoinfo/middleware.py
+++ b/openedx/core/djangoapps/geoinfo/middleware.py
@@ -41,7 +41,6 @@ class CountryMiddleware(MiddlewareMixin):
             reader = geoip2.database.Reader(settings.GEOIP_PATH)
             try:
                 response = reader.country(new_ip_address)
-                # pylint: disable=no-member
                 country_code = response.country.iso_code
             except geoip2.errors.AddressNotFoundError:
                 country_code = ""
diff --git a/openedx/core/djangoapps/site_configuration/tests/test_middleware.py b/openedx/core/djangoapps/site_configuration/tests/test_middleware.py
index 890c6453c2..1932b7e104 100644
--- a/openedx/core/djangoapps/site_configuration/tests/test_middleware.py
+++ b/openedx/core/djangoapps/site_configuration/tests/test_middleware.py
@@ -4,9 +4,6 @@ Test site_configuration middleware.
 """
 
 
-from mock import patch
-
-from django.conf import settings
 from django.test import TestCase
 from django.test.client import Client
 from django.test.utils import override_settings