Fix tests and style for last commit

src/pretix/control/views/dashboards.py

@@ -14,7 +14,7 @@ from django.utils import formats
 from django.utils.formats import date_format
 from django.utils.html import escape
 from django.utils.timezone import now
-from django.utils.translation import ugettext_lazy as _, ungettext, pgettext
+from django.utils.translation import pgettext, ugettext_lazy as _, ungettext
 
 from pretix.base.models import (
     Item, Order, OrderPosition, RequiredAction, SubEvent, Voucher,

src/pretix/control/views/typeahead.py

@@ -8,7 +8,7 @@ from django.db.models.functions import Coalesce, Greatest
 from django.http import JsonResponse
 from django.urls import reverse
 from django.utils.timezone import make_aware
-from django.utils.translation import ugettext as _, pgettext
+from django.utils.translation import pgettext, ugettext as _
 
 from pretix.base.models import Organizer, User
 from pretix.control.permissions import event_permission_required

src/tests/control/test_events.py

@@ -829,8 +829,8 @@ class SubEventsTest(SoupTest):
         assert doc.select(".alert-success")
         # deleting the second event
         doc = self.post_doc('/control/event/ccc/30c3/subevents/%d/delete' % self.subevent2.pk, {})
-        assert doc.select(".alert-danger")
-        assert SubEvent.objects.filter(pk=self.subevent2.pk).exists()
+        assert doc.select(".alert-success")
+        assert not SubEvent.objects.filter(pk=self.subevent2.pk).exists()
         assert not SubEvent.objects.filter(pk=self.subevent1.pk).exists()
 
     def test_delete_with_orders(self):