diff --git a/access_controller/asgi.py b/access_controller/asgi.py
index 11dc22e..824ff57 100644
--- a/access_controller/asgi.py
+++ b/access_controller/asgi.py
@@ -8,10 +8,7 @@ https://docs.djangoproject.com/en/3.1/howto/deployment/asgi/
 """
 
 import os
-
-
-
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'access_controller.settings')
 from django.core.asgi import get_asgi_application
 
+os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'access_controller.settings')
 application = get_asgi_application()
diff --git a/access_controller/urls.py b/access_controller/urls.py
index 63dc19f..11e9fc7 100644
--- a/access_controller/urls.py
+++ b/access_controller/urls.py
@@ -14,7 +14,6 @@ Including another URLconf
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.contrib.auth import views
 from django.urls import path, include
 
 from main.views import main_page, profile_page, CustomRegistrationView, CustomLoginView, registration_error
diff --git a/main/admin.py b/main/admin.py
index 8c38f3f..b1e5a2d 100644
--- a/main/admin.py
+++ b/main/admin.py
@@ -1,3 +1,8 @@
-from django.contrib import admin
+"""
+Встроенный файл
+"""
+
+
+# from django.contrib import admin
 
 # Register your models here.
diff --git a/main/apiauth.py b/main/apiauth.py
index 08a018c..b6488ba 100644
--- a/main/apiauth.py
+++ b/main/apiauth.py
@@ -1,5 +1,6 @@
-import os
-
+"""
+Авторизация по Zenpy.
+"""
 from zenpy import Zenpy
 from zenpy.lib.api_objects import User as ZenpyUser
 
diff --git a/main/forms.py b/main/forms.py
index 36d2e88..5666255 100644
--- a/main/forms.py
+++ b/main/forms.py
@@ -1,3 +1,6 @@
+"""
+Формы.
+"""
 from django import forms
 from django.contrib.auth.forms import AuthenticationForm
 from django_registration.forms import RegistrationFormUniqueEmail
diff --git a/main/serializers.py b/main/serializers.py
index 5ed3138..e72dc7a 100644
--- a/main/serializers.py
+++ b/main/serializers.py
@@ -1,3 +1,6 @@
+"""
+Сериализаторы.
+"""
 from django.contrib.auth.models import User
 from rest_framework import serializers
 from main.models import UserProfile
@@ -61,7 +64,12 @@ class ZendeskUserSerializer(serializers.Serializer):
         """
         if obj.custom_role_id == ZENDESK_ROLES['engineer']:
             return 'engineer'
-        elif obj.custom_role_id == ZENDESK_ROLES['light_agent']:
+        if obj.custom_role_id == ZENDESK_ROLES['light_agent']:
             return 'light_agent'
-        else:
-            return "empty"
+        return "empty"
+
+    def create(self, validated_data):
+        pass
+
+    def update(self, instance, validated_data):
+        pass
diff --git a/main/tests.py b/main/tests.py
index b733ed1..4a18882 100644
--- a/main/tests.py
+++ b/main/tests.py
@@ -1,2 +1,5 @@
-from django.test import TestCase, Client
-import access_controller.settings as sets
+"""
+Тесты.
+"""
+# from django.test import TestCase, Client
+# import access_controller.settings as sets
diff --git a/main/urls.py b/main/urls.py
index fffe11d..5c55d9d 100644
--- a/main/urls.py
+++ b/main/urls.py
@@ -1,3 +1,7 @@
+"""
+REST framework adds support for automatic URL routing to Django.
+"""
+
 from rest_framework.routers import DefaultRouter
 from main.views import UsersViewSet