diff --git a/mayan/apps/common/apps.py b/mayan/apps/common/apps.py
index f097153661..324f33dc4e 100644
--- a/mayan/apps/common/apps.py
+++ b/mayan/apps/common/apps.py
@@ -27,9 +27,7 @@ from .links import (
 )
 
 from .literals import MESSAGE_SQLITE_WARNING
-from .menus import (
-    menu_about, menu_main, menu_secondary, menu_topbar, menu_user
-)
+from .menus import menu_about, menu_secondary, menu_topbar, menu_user
 from .settings import (
     setting_auto_logging, setting_production_error_log_path,
     setting_production_error_logging
diff --git a/mayan/apps/document_states/html_widgets.py b/mayan/apps/document_states/html_widgets.py
index 98ad2d817f..58d3da1773 100644
--- a/mayan/apps/document_states/html_widgets.py
+++ b/mayan/apps/document_states/html_widgets.py
@@ -1,9 +1,7 @@
 from __future__ import unicode_literals
 
-from django import forms
 from django.template.loader import render_to_string
-from django.urls import reverse
-from django.utils.html import format_html_join, mark_safe
+from django.utils.html import format_html_join
 
 
 def widget_transition_events(transition):
diff --git a/mayan/apps/document_states/tests/literals.py b/mayan/apps/document_states/tests/literals.py
index c17a870e9c..63d758efc3 100644
--- a/mayan/apps/document_states/tests/literals.py
+++ b/mayan/apps/document_states/tests/literals.py
@@ -24,4 +24,3 @@ TEST_WORKFLOW_TRANSITION_LABEL_EDITED = 'test transition label edited'
 TEST_INDEX_TEMPLATE_METADATA_EXPRESSION = '{{{{ document.workflow.{}.get_current_state }}}}'.format(
     TEST_WORKFLOW_INTERNAL_NAME
 )
-
diff --git a/mayan/apps/document_states/views/workflow_views.py b/mayan/apps/document_states/views/workflow_views.py
index 008c83a108..104560a805 100644
--- a/mayan/apps/document_states/views/workflow_views.py
+++ b/mayan/apps/document_states/views/workflow_views.py
@@ -742,6 +742,7 @@ class SetupWorkflowTransitionFieldCreateView(ExternalObjectMixin, SingleObjectCr
         'name', 'label', 'field_type', 'help_text', 'required', 'widget',
         'widget_kwargs'
     )
+
     def get_extra_context(self):
         return {
             'navigation_object_list': ('transition', 'workflow'),
diff --git a/mayan/apps/events/apps.py b/mayan/apps/events/apps.py
index 6ec59d3b90..046f98968b 100644
--- a/mayan/apps/events/apps.py
+++ b/mayan/apps/events/apps.py
@@ -6,7 +6,7 @@ from django.utils.translation import ugettext_lazy as _
 from mayan.apps.common.apps import MayanAppConfig
 from mayan.apps.common.html_widgets import TwoStateWidget
 from mayan.apps.common.menus import (
-    menu_main, menu_object, menu_secondary, menu_tools, menu_topbar, menu_user
+    menu_object, menu_secondary, menu_tools, menu_topbar, menu_user
 )
 from mayan.apps.navigation.classes import SourceColumn
 
diff --git a/mayan/apps/smart_settings/tests/test_classes.py b/mayan/apps/smart_settings/tests/test_classes.py
index 6e88607f7f..dc472dd245 100644
--- a/mayan/apps/smart_settings/tests/test_classes.py
+++ b/mayan/apps/smart_settings/tests/test_classes.py
@@ -11,7 +11,7 @@ from mayan.apps.common.settings import setting_paginate_by
 from mayan.apps.common.tests import BaseTestCase
 from mayan.apps.storage.utils import fs_cleanup
 
-from ..classes import Namespace, Setting
+from ..classes import Setting
 
 from .literals import ENVIRONMENT_TEST_NAME, ENVIRONMENT_TEST_VALUE
 from .mixins import SmartSettingTestMixin
@@ -52,4 +52,3 @@ class ClassesTestCase(SmartSettingTestMixin, BaseTestCase):
         self.assertFalse(Setting.check_changed())
         test_setting.value = 'test value edited'
         self.assertTrue(Setting.check_changed())
-
diff --git a/mayan/apps/tags/models.py b/mayan/apps/tags/models.py
index 470a5f838d..abc00dd33c 100644
--- a/mayan/apps/tags/models.py
+++ b/mayan/apps/tags/models.py
@@ -61,7 +61,7 @@ class Tag(models.Model):
     def get_document_count(self, user):
         """
         Return the numeric count of documents that have this tag attached.
-        The count if filtered by access.
+        The count is filtered by access.
         """
         queryset = AccessControlList.objects.restrict_queryset(
             permission=permission_document_view, queryset=self.documents,