diff --git a/interactive/models.py b/interactive/models.py
index ad6cca69f..003c2bd4e 100644
--- a/interactive/models.py
+++ b/interactive/models.py
@@ -83,7 +83,7 @@ def serve(self, request, *args, **kwargs):
                 try:
                     response = requests.post(url=channel_url, data=data)
                     response.raise_for_status()
-                except requests.exceptions.RequestException as e:
+                except requests.exceptions.RequestException:
                     return redirect("/")
 
                 return redirect(self.get_url(request))
@@ -105,11 +105,8 @@ def get_user_identifier(self, request):
             request.session.save()
 
         user_uuid = request.session.setdefault("interactive_uuid", str(uuid.uuid4()))
-
-        # Get the authenticated user
         user = request.user
 
-        # If the user is authenticated and has no 'interactive_uuid' set, update it
         if user.is_authenticated:
             if user.interactive_uuid:
                 user_uuid = user.interactive_uuid
@@ -121,16 +118,15 @@ def get_user_identifier(self, request):
         return user_uuid
 
     def get_message_from_db(self, user):
-        # wait a second to receive new message from rapidpro
+        # Wait to receive new message from rapidpro
         time.sleep(1)
 
         start_time = time.time()
 
         while True:
-            # Calculate the elapsed time
+            # Elapsed time in seconds
             elapsed_time = time.time() - start_time
 
-            # Break the loop if 5 seconds have elapsed
             if elapsed_time >= 5:
                 break
 
@@ -140,26 +136,16 @@ def get_message_from_db(self, user):
 
             text = chat.text.strip()
 
-            # Check if the message has a next message indicator
             if text.endswith("[CONTINUE]"):
                 time.sleep(1)
             else:
-                break  # Exit the loop if the message does not end with '[CONTINUE]'
+                break
 
         shortcode_service = ShortCodeService()
         text = shortcode_service.apply_shortcode(text)
-
-        # Define the regular expression pattern
         pattern = r'\[color_scheme\s+bg-color="(?P<bg_color>[^"]+)"(\])?'
-
-        # Search for matches in the input string
         match = re.search(pattern, text)
-
-        bg_color = ""
-        # Check if a match is found
-        if match:
-            # Extract the bg_color attributes
-            bg_color = match.group("bg_color")
+        bg_color = match.group("bg_color") if match else ""
 
         # Remove the [bg_color] tag from the input string
         text = re.sub(pattern, "", text)
@@ -180,5 +166,4 @@ def send_message_on_language_switch(self, request, user):
 
         if referer_lang != current_lang:
             data = {"from": user, "text": self.trigger_string}
-
-            response = requests.post(url=self.channel.request_url, data=data)
+            requests.post(url=self.channel.request_url, data=data)
diff --git a/interactive/services.py b/interactive/services.py
index 9de34e84e..4047b81db 100644
--- a/interactive/services.py
+++ b/interactive/services.py
@@ -32,7 +32,7 @@ def button_callback(self, attrs, content):
 
     def form_callback(self, attrs, content):
         if attrs["type"] == "input":
-            return f'<input class="text-input" type="text" name="text">'
+            return '<input class="text-input" type="text" name="text">'
 
         return ""
 
diff --git a/interactive/tests/tests.py b/interactive/tests/tests.py
index 006adc699..6c3f03b37 100644
--- a/interactive/tests/tests.py
+++ b/interactive/tests/tests.py
@@ -9,15 +9,15 @@
 from interactive.models import Message
 
 
-# Create your tests here.
 class RapidProWebhookTest(APITestCase):
     def setUp(self) -> None:
         username = uuid4()
         management.call_command("sync_rapidpro_bot_user", username=username)
         self.bot_user = User.objects.get(username=username)
         self.client = APIClient()
+        token = RefreshToken.for_user(self.bot_user).access_token
         self.client.credentials(
-            HTTP_AUTHORIZATION=f"Bearer {RefreshToken.for_user(self.bot_user).access_token}"
+            HTTP_AUTHORIZATION=f"Bearer {token}"
         )
 
     def test_webhook_stitches_messages(self):
@@ -25,7 +25,10 @@ def test_webhook_stitches_messages(self):
         rapidpro_data_list = [
             {
                 "id": "1",
-                "text": "Some message with the first part of text. First part ends at the exclamation mark!",
+                "text": (
+                    "Some message with the first part of text. First part ends at the"
+                    " exclamation mark!"
+                ),
                 "to": "bd3577c6-65b1-4bb7-9611-306c11b1dcc5",
                 "from": "abcd",
                 "channel": "bd3577c6-65b1-4bb7-9611-306c11b1dcc5",