diff --git a/src/pretixbase/middleware.py b/src/pretixbase/middleware.py
index e61af7c011..efebc65e87 100644
--- a/src/pretixbase/middleware.py
+++ b/src/pretixbase/middleware.py
@@ -1,7 +1,6 @@
 import pytz
 
 from django.conf import settings
-from django.core.urlresolvers import resolve
 from django.middleware.locale import LocaleMiddleware as BaseLocaleMiddleware
 from django.utils.translation.trans_real import (
     get_supported_language_variant,
@@ -14,7 +13,6 @@ from django.utils import translation, timezone
 from collections import OrderedDict
 from django.utils.cache import patch_vary_headers
 
-from pretixbase.models import Event
 
 _supported = None
 
diff --git a/src/pretixbase/tests/__init__.py b/src/pretixbase/tests/__init__.py
index d563d39224..1090761f72 100644
--- a/src/pretixbase/tests/__init__.py
+++ b/src/pretixbase/tests/__init__.py
@@ -2,7 +2,6 @@ import os
 import sys
 from django.contrib.staticfiles.testing import StaticLiveServerTestCase
 
-from django.test import LiveServerTestCase
 from django.conf import settings
 from selenium import webdriver
 
diff --git a/src/pretixcontrol/tests/test_items.py b/src/pretixcontrol/tests/test_items.py
index 1b4d60aa18..9dc2f8452f 100644
--- a/src/pretixcontrol/tests/test_items.py
+++ b/src/pretixcontrol/tests/test_items.py
@@ -18,7 +18,7 @@ class ItemFormTest(BrowserTest):
         self.event1 = Event.objects.create(
             organizer=self.orga1, name='30C3', slug='30c3',
             date_from=datetime.datetime(2013, 12, 26, tzinfo=datetime.timezone.utc),
-            )
+        )
         OrganizerPermission.objects.create(organizer=self.orga1, user=self.user)
         EventPermission.objects.create(event=self.event1, user=self.user, can_change_items=True,
                                        can_change_settings=True)
diff --git a/src/pretixcontrol/urls.py b/src/pretixcontrol/urls.py
index fe5113b392..73f87503b1 100644
--- a/src/pretixcontrol/urls.py
+++ b/src/pretixcontrol/urls.py
@@ -54,5 +54,5 @@ urlpatterns += patterns(
                 name='event.items.quotas.delete'),
             url(r'^quotas/add$', item.QuotaCreate.as_view(), name='event.items.quotas.add'),
         )
-        ))
+    ))
 )
diff --git a/src/pretixcontrol/views/forms.py b/src/pretixcontrol/views/forms.py
index 4d3809955e..261f8d4668 100644
--- a/src/pretixcontrol/views/forms.py
+++ b/src/pretixcontrol/views/forms.py
@@ -1,7 +1,7 @@
 from itertools import product
 from django import forms
 from django.core.exceptions import ValidationError
-from django.db import transaction, IntegrityError
+from django.db import transaction
 from django.forms.widgets import flatatt
 from django.utils.encoding import force_text
 from django.utils.html import format_html
diff --git a/src/pretixcontrol/views/item.py b/src/pretixcontrol/views/item.py
index bca14f9ba8..b3ec94a4d2 100644
--- a/src/pretixcontrol/views/item.py
+++ b/src/pretixcontrol/views/item.py
@@ -649,7 +649,7 @@ class ItemCreate(EventPermissionRequiredMixin, CreateView):
             'organizer': self.request.event.organizer.slug,
             'event': self.request.event.slug,
             'item': self.object.identity,
-            }) + '?success=true'
+        }) + '?success=true'
 
     def get_form_kwargs(self):
         """
diff --git a/src/pretixplugins/timerestriction/signals.py b/src/pretixplugins/timerestriction/signals.py
index 27568ae7f9..0106c8e912 100644
--- a/src/pretixplugins/timerestriction/signals.py
+++ b/src/pretixplugins/timerestriction/signals.py
@@ -5,7 +5,7 @@ from django.forms.models import inlineformset_factory
 
 from pretixbase.signals import determine_availability
 from pretixbase.models import Item
-from pretixcontrol.views.forms import VariationsField, RestrictionInlineFormset, RestrictionForm
+from pretixcontrol.views.forms import RestrictionInlineFormset, RestrictionForm
 from pretixcontrol.signals import restriction_formset
 
 from .models import TimeRestriction
diff --git a/src/pretixpresale/admin.py b/src/pretixpresale/admin.py
deleted file mode 100644
index 8c38f3f3da..0000000000
--- a/src/pretixpresale/admin.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.contrib import admin
-
-# Register your models here.
diff --git a/src/pretixpresale/middleware.py b/src/pretixpresale/middleware.py
index 75b2e63bea..5277bbee66 100644
--- a/src/pretixpresale/middleware.py
+++ b/src/pretixpresale/middleware.py
@@ -1,11 +1,5 @@
-from django.conf import settings
 from django.core.urlresolvers import resolve
-from django.utils.encoding import force_str
-from django.utils.six.moves.urllib.parse import urlparse
-from django.shortcuts import resolve_url
-from django.contrib.auth import REDIRECT_FIELD_NAME
 from django.http import HttpResponseNotFound
-from django.utils.translation import ugettext as _
 
 from pretixbase.models import Event
 
diff --git a/src/pretixpresale/views/cart.py b/src/pretixpresale/views/cart.py
index e75c642bf8..cbf561f174 100644
--- a/src/pretixpresale/views/cart.py
+++ b/src/pretixpresale/views/cart.py
@@ -21,7 +21,7 @@ class CartActionMixin(CartMixin):
             return reverse('presale:event.index', kwargs={
                 'event': self.request.event.slug,
                 'organizer': self.request.event.organizer.slug,
-                })
+            })
 
     def get_success_url(self):
         return self.get_next_url()