Used isort to order all import statements

src/tests/presale/test_account.py

@@ -1,8 +1,10 @@
 import time
-from pretix.base.models import User
+
 from tests.base import BrowserTest
 from tests.presale.test_event import EventTestMixin
 
+from pretix.base.models import User
+
 
 class UserSettingsTest(EventTestMixin, BrowserTest):
     def setUp(self):

src/tests/presale/test_cart.py

@@ -1,14 +1,17 @@
 import datetime
 import time
+from datetime import timedelta
+
 from bs4 import BeautifulSoup
 from django.test import TestCase
 from django.utils.timezone import now
-from datetime import timedelta
-
-from pretix.base.models import Item, Organizer, Event, ItemCategory, Quota, Property, PropertyValue, ItemVariation, User, \
-    CartPosition, Question, QuestionAnswer
 from tests.base import BrowserTest
 
+from pretix.base.models import (
+    CartPosition, Event, Item, ItemCategory, ItemVariation, Organizer,
+    Property, PropertyValue, Question, QuestionAnswer, Quota, User,
+)
+
 
 class CartTestMixin:
 

src/tests/presale/test_checkout.py

@@ -1,11 +1,14 @@
 import datetime
+from datetime import timedelta
+
 from bs4 import BeautifulSoup
 from django.test import TestCase
 from django.utils.timezone import now
-from datetime import timedelta
 
-from pretix.base.models import Item, Organizer, Event, ItemCategory, Quota, User, \
-    CartPosition, Question, Order, OrderPosition
+from pretix.base.models import (
+    CartPosition, Event, Item, ItemCategory, Order, OrderPosition, Organizer,
+    Question, Quota, User,
+)
 
 
 class CheckoutTestCase(TestCase):

src/tests/presale/test_event.py

@@ -1,11 +1,15 @@
 import datetime
 import time
+
 from django.test import TestCase
 from django.utils.timezone import now
-
-from pretix.base.models import Item, Organizer, Event, ItemCategory, Quota, Property, PropertyValue, ItemVariation, User
 from tests.base import BrowserTest
 
+from pretix.base.models import (
+    Event, Item, ItemCategory, ItemVariation, Organizer, Property,
+    PropertyValue, Quota, User,
+)
+
 
 class EventTestMixin:
 

src/tests/presale/test_orders.py

@@ -1,11 +1,14 @@
 import datetime
 from decimal import Decimal
+
 from bs4 import BeautifulSoup
 from django.test import TestCase
 from django.utils.timezone import now
 
-from pretix.base.models import Organizer, Event, Order, User, ItemCategory, Quota, Item, Property, PropertyValue, \
-    ItemVariation, OrderPosition, Question
+from pretix.base.models import (
+    Event, Item, ItemCategory, ItemVariation, Order, OrderPosition, Organizer,
+    Property, PropertyValue, Question, Quota, User,
+)
 
 
 class OrdersTest(TestCase):