diff --git a/src/pretix/api/serializers/media.py b/src/pretix/api/serializers/media.py
index 62d6406dd..82cb6b43c 100644
--- a/src/pretix/api/serializers/media.py
+++ b/src/pretix/api/serializers/media.py
@@ -31,7 +31,7 @@ from pretix.api.serializers.order import OrderPositionSerializer
 from pretix.api.serializers.organizer import (
     CustomerSerializer, GiftCardSerializer,
 )
-from pretix.base.models import Device, Order, OrderPosition, ReusableMedium, TeamAPIToken, User
+from pretix.base.models import Order, OrderPosition, ReusableMedium
 
 logger = logging.getLogger(__name__)
 
@@ -139,8 +139,6 @@ class ReusableMediaSerializer(I18nAwareModelSerializer):
 
         return r
 
-
-
     class Meta:
         model = ReusableMedium
         fields = (
diff --git a/src/tests/api/test_giftcards.py b/src/tests/api/test_giftcards.py
index 9755c0652..ef3db84b4 100644
--- a/src/tests/api/test_giftcards.py
+++ b/src/tests/api/test_giftcards.py
@@ -170,6 +170,7 @@ def test_giftcard_detail_expand(token_client, organizer, event, giftcard):
         "blocked": None
     }
 
+
 @pytest.mark.django_db
 def test_giftcard_detail_expand_without_permissions(team, token_client, organizer, event, giftcard):
     with scopes_disabled():
diff --git a/src/tests/api/test_reusable_media.py b/src/tests/api/test_reusable_media.py
index 5b49d6195..18ee325a5 100644
--- a/src/tests/api/test_reusable_media.py
+++ b/src/tests/api/test_reusable_media.py
@@ -23,7 +23,6 @@ from datetime import datetime, timedelta, timezone
 from decimal import Decimal
 
 import pytest
-from django.contrib.messages.storage.fallback import FallbackStorage
 from django.utils.timezone import now
 from django_scopes import scopes_disabled
 
@@ -252,6 +251,7 @@ def test_medium_detail(token_client, organizer, event, medium, giftcard, custome
             "issuer": "dummy",
         }
 
+
 @pytest.mark.django_db
 def test_medium_detail_event_permission_missing(token_client, organizer, event, medium, giftcard, customer, team):
     team.all_organizer_permissions = False
@@ -301,7 +301,7 @@ def test_medium_detail_event_permission_missing(token_client, organizer, event,
             "testmode": False,
             "expires": None,
             "conditions": None,
-            "owner_ticket": {"id": op.pk },
+            "owner_ticket": {"id": op.pk},
             "issuer": "dummy",
         }
 
@@ -322,9 +322,6 @@ def test_medium_detail_event_permission_missing(token_client, organizer, event,
         }
 
 
-
-
-
 TEST_MEDIUM_CREATE_PAYLOAD = {
     "type": "barcode",
     "identifier": "FOOBAR",