linting fixes

wagtail/admin/views/generic/__init__.py

@@ -1,8 +1,8 @@
-from .mixins import (
+from .mixins import (  # noqa
     BeforeAfterHookMixin,
     HookResponseMixin,
     LocaleMixin,
     PanelMixin,
-)  # noqa
+)
 from .models import CreateView, DeleteView, EditView, IndexView  # noqa
 from .permissions import PermissionCheckedMixin  # noqa

wagtail/snippets/views/snippets.py

@@ -16,12 +16,7 @@ from django.views.generic import TemplateView
 from wagtail.admin import messages
 from wagtail.admin.panels import ObjectList, extract_panel_definitions_from_model_class
 from wagtail.admin.ui.tables import Column, DateColumn, UserColumn
-from wagtail.admin.views.generic import (
-    CreateView,
-    DeleteView,
-    EditView,
-    IndexView,
-)
+from wagtail.admin.views.generic import CreateView, DeleteView, EditView, IndexView
 from wagtail.log_actions import log
 from wagtail.log_actions import registry as log_registry
 from wagtail.models import Locale