diff --git a/HisabKitab/settings.py b/HisabKitab/settings.py
index 71fd1d4..434ed98 100644
--- a/HisabKitab/settings.py
+++ b/HisabKitab/settings.py
@@ -9,6 +9,7 @@
 For the full list of settings and their values, see
 https://docs.djangoproject.com/en/1.11/ref/settings/
 """
+
 import os
 
 from .custom_settings import *
diff --git a/HisabKitab/test_settings.py b/HisabKitab/test_settings.py
index 19dfe28..f224ea1 100644
--- a/HisabKitab/test_settings.py
+++ b/HisabKitab/test_settings.py
@@ -1,6 +1,7 @@
 """
 With these settings, tests run faster.
 """
+
 import os
 
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
diff --git a/HisabKitab/urls.py b/HisabKitab/urls.py
index 4f56f8f..e40814a 100644
--- a/HisabKitab/urls.py
+++ b/HisabKitab/urls.py
@@ -13,6 +13,7 @@
     1. Import the include() function: from django.conf.urls import url, include
     2. Add a URL to urlpatterns:  path(r'^blog/', include('blog.urls'))
 """
+
 from django.contrib import admin
 from django.contrib.auth.views import LoginView
 from django.urls import include, path, re_path
diff --git a/HisabKitab/wsgi.py b/HisabKitab/wsgi.py
index da9374d..956e4ef 100644
--- a/HisabKitab/wsgi.py
+++ b/HisabKitab/wsgi.py
@@ -6,6 +6,7 @@
 For more information on this file, see
 https://docs.djangoproject.com/en/1.11/howto/deployment/wsgi/
 """
+
 import os
 
 from django.core.wsgi import get_wsgi_application
diff --git a/users/tests/test_managers.py b/users/tests/test_managers.py
index 6e3cf1a..e455a0f 100644
--- a/users/tests/test_managers.py
+++ b/users/tests/test_managers.py
@@ -1,4 +1,5 @@
 """Tests for drf_user/managers.py module"""
+
 from django.contrib.auth import get_user_model
 from django.test import TestCase
 from faker import Faker
diff --git a/users/tests/test_utils.py b/users/tests/test_utils.py
index 2861ad4..4d9b337 100644
--- a/users/tests/test_utils.py
+++ b/users/tests/test_utils.py
@@ -1,4 +1,5 @@
 """Tests for drf_user/utils.py module"""
+
 import datetime
 from unittest.mock import ANY, MagicMock, patch
 
diff --git a/users/utils.py b/users/utils.py
index d1ae9da..393ae3d 100644
--- a/users/utils.py
+++ b/users/utils.py
@@ -170,9 +170,9 @@ def validate_otp(value, otp):
             data["OTP"] = "Attempt exceeded! OTP has been reset!"
         else:
             otp_object.save()
-            data[
-                "OTP"
-            ] = f"OTP Validation failed! {otp_object.validate_attempt} attempts left!"
+            data["OTP"] = (
+                f"OTP Validation failed! {otp_object.validate_attempt} attempts left!"
+            )
             status_code = status.HTTP_401_UNAUTHORIZED
     except OTPValidation.DoesNotExist:
         # If OTP object doesn't exist set proper message and status_code
@@ -205,9 +205,9 @@ def send_otp(prop: str, value: str, otpobj: OTPValidation, recip: str) -> dict:
     rdata = {"success": False, "message": None}
 
     if otpobj.reactive_at > datetime.datetime.now():
-        rdata[
-            "message"
-        ] = f"OTP sending not allowed until: {otpobj.reactive_at.strftime('%d-%h-%Y %H:%M:%S')}"
+        rdata["message"] = (
+            f"OTP sending not allowed until: {otpobj.reactive_at.strftime('%d-%h-%Y %H:%M:%S')}"
+        )
         return rdata
 
     message = (