Used isort to order all import statements

src/pretix/control/forms/__init__.py

@@ -1,5 +1,6 @@
 from functools import partial
 from itertools import product
+
 from django import forms
 from django.core.exceptions import ValidationError
 from django.db import transaction
@@ -9,9 +10,9 @@ from django.utils.encoding import force_text
 from django.utils.html import format_html
 from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy as _
-from pretix.base.forms import VersionedModelForm
 
-from pretix.base.models import ItemVariation, Item
+from pretix.base.forms import VersionedModelForm
+from pretix.base.models import Item, ItemVariation
 
 
 class I18nInlineFormSet(BaseInlineFormSet):

src/pretix/control/forms/auth.py

@@ -1,7 +1,9 @@
-from django.contrib.auth.forms import AuthenticationForm as BaseAuthenticationForm
 from django import forms
-from django.utils.translation import ugettext as _
 from django.contrib.auth import authenticate
+from django.contrib.auth.forms import \
+    AuthenticationForm as BaseAuthenticationForm
+from django.utils.translation import ugettext as _
+
 from pretix.base.models import User
 
 

src/pretix/control/forms/event.py

@@ -1,10 +1,9 @@
-from django.conf import settings
 from django import forms
+from django.conf import settings
 from django.utils.translation import ugettext_lazy as _
-
 from pytz import common_timezones
 
-from pretix.base.forms import VersionedModelForm, SettingsForm
+from pretix.base.forms import SettingsForm, VersionedModelForm
 from pretix.base.models import Event
 
 

src/pretix/control/forms/item.py

@@ -1,11 +1,14 @@
 import copy
+
 from django.db import models
 from django.forms import BooleanField
 from django.utils.translation import ugettext_lazy as _
-from pretix.base.forms import VersionedModelForm, I18nModelForm
+
+from pretix.base.forms import I18nModelForm, VersionedModelForm
 from pretix.base.models import (
-    Item, ItemCategory, Property, ItemVariation, PropertyValue, Question, Quota,
-    Versionable)
+    Item, ItemCategory, ItemVariation, Property, PropertyValue, Question,
+    Quota, Versionable,
+)
 from pretix.control.forms import TolerantFormsetModelForm, VariationsField
 
 

src/pretix/control/forms/orders.py

@@ -1,5 +1,4 @@
 from pretix.base.forms import VersionedModelForm
-
 from pretix.base.models import Order
 
 

src/pretix/control/forms/organizer.py

@@ -1,7 +1,7 @@
 from django import forms
 from django.utils.translation import ugettext_lazy as _
-from pretix.base.forms import VersionedModelForm
 
+from pretix.base.forms import VersionedModelForm
 from pretix.base.models import Organizer