diff --git a/src/pretix/base/forms/auth.py b/src/pretix/base/forms/auth.py
index 5caa1f0e06..d2d5bec414 100644
--- a/src/pretix/base/forms/auth.py
+++ b/src/pretix/base/forms/auth.py
@@ -214,12 +214,14 @@ class PasswordRecoverForm(forms.Form):
     error_messages = {
         'pw_mismatch': _("Please enter the same password twice"),
     }
-    email = forms.EmailField(max_length=255,
-                             disabled=True,
-                             label=_("Your email address"),
-                             widget=forms.EmailInput(
-                                        attrs={'autocomplete': 'username'},
-                                    ))
+    email = forms.EmailField(
+        max_length=255,
+        disabled=True,
+        label=_("Your email address"),
+        widget=forms.EmailInput(
+            attrs={'autocomplete': 'username'},
+        ),
+    )
     password = forms.CharField(
         label=_('Password'),
         widget=forms.PasswordInput(attrs={
@@ -325,4 +327,3 @@ class ConfirmationCodeForm(forms.Form):
         label='',
         widget=forms.NumberInput(attrs={'class': 'confirmation-code-input', 'inputmode': 'numeric', 'type': 'text'}),
     )
-
diff --git a/src/pretix/base/forms/user.py b/src/pretix/base/forms/user.py
index 8c5706167a..401c0b0b0b 100644
--- a/src/pretix/base/forms/user.py
+++ b/src/pretix/base/forms/user.py
@@ -40,7 +40,6 @@ from django.contrib.auth.password_validation import (
 )
 from django.db.models import Q
 from django.urls.base import reverse
-from django.utils.safestring import mark_safe
 from django.utils.translation import gettext_lazy as _
 from pytz import common_timezones
 
@@ -116,20 +115,20 @@ class UserPasswordChangeForm(forms.Form):
                              disabled=True,
                              label=_("Your email address"),
                              widget=forms.EmailInput(
-                                        attrs={'autocomplete': 'username'},
-                                    ))
+                                 attrs={'autocomplete': 'username'},
+                             ))
     old_pw = forms.CharField(max_length=255,
                              required=False,
                              label=_("Your current password"),
                              widget=forms.PasswordInput(
-                                        attrs={'autocomplete': 'current-password'},
-                                    ))
+                                 attrs={'autocomplete': 'current-password'},
+                             ))
     new_pw = forms.CharField(max_length=255,
                              required=False,
                              label=_("New password"),
                              widget=forms.PasswordInput(
-                                        attrs={'autocomplete': 'new-password'},
-                                    ))
+                                 attrs={'autocomplete': 'new-password'},
+                             ))
     new_pw_repeat = forms.CharField(max_length=255,
                                     required=False,
                                     label=_("Repeat new password"),
@@ -184,7 +183,6 @@ class UserPasswordChangeForm(forms.Form):
             )
 
 
-
 class UserEmailChangeForm(forms.Form):
     error_messages = {
         'duplicate_identifier': _("There already is an account associated with this email address. "
diff --git a/src/pretix/base/models/auth.py b/src/pretix/base/models/auth.py
index 272766524d..0b9eb8da1e 100644
--- a/src/pretix/base/models/auth.py
+++ b/src/pretix/base/models/auth.py
@@ -43,7 +43,9 @@ from django.conf import settings
 from django.contrib.auth.models import (
     AbstractBaseUser, BaseUserManager, PermissionsMixin,
 )
-from django.contrib.auth.tokens import PasswordResetTokenGenerator, default_token_generator
+from django.contrib.auth.tokens import (
+    PasswordResetTokenGenerator, default_token_generator,
+)
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import BadRequest, PermissionDenied
 from django.db import IntegrityError, models, transaction
diff --git a/src/pretix/control/views/user.py b/src/pretix/control/views/user.py
index 86e885c96b..178ec2b394 100644
--- a/src/pretix/control/views/user.py
+++ b/src/pretix/control/views/user.py
@@ -37,7 +37,6 @@ import json
 import logging
 import time
 from collections import defaultdict
-from hmac import compare_digest
 from urllib.parse import quote
 
 import webauthn
@@ -61,10 +60,12 @@ from django_otp.plugins.otp_totp.models import TOTPDevice
 from django_scopes import scopes_disabled
 from webauthn.helpers import generate_challenge, generate_user_handle
 
-from django.core.cache import cache
 from pretix.base.auth import get_auth_backends
 from pretix.base.forms.auth import ConfirmationCodeForm, ReauthForm
-from pretix.base.forms.user import User2FADeviceAddForm, UserEmailChangeForm, UserPasswordChangeForm, UserSettingsForm
+from pretix.base.forms.user import (
+    User2FADeviceAddForm, UserEmailChangeForm, UserPasswordChangeForm,
+    UserSettingsForm,
+)
 from pretix.base.models import (
     Event, LogEntry, NotificationSetting, U2FDevice, User, WebAuthnDevice,
 )
@@ -77,7 +78,6 @@ from pretix.control.permissions import (
 from pretix.control.views.auth import get_u2f_appid, get_webauthn_rp_id
 from pretix.helpers.http import redirect_to_url
 from pretix.helpers.u2f import websafe_encode
-from pretix.multidomain.urlreverse import build_absolute_uri
 
 REAL_DEVICE_TYPES = (TOTPDevice, WebAuthnDevice, U2FDevice)
 logger = logging.getLogger(__name__)
@@ -906,7 +906,10 @@ class UserEmailConfirmView(FormView):
         except PermissionDenied:
             return self.form_invalid(form)
         except BadRequest:
-            messages.error(self.request, _('Your email address could not be changed, because we were unable to verify your confirmation code. Please try again.'))
+            messages.error(self.request, _(
+                'Your email address could not be changed, because we were unable to '
+                'verify your confirmation code. Please try again.'
+            ))
             return redirect(reverse('control:user.settings', kwargs={}))
 
         msgs = []