Fix lint

aleksis/apps/alsijil/models.py

@@ -498,7 +498,10 @@ class Documentation(CalendarEvent):
     def __str__(self) -> str:
         start_datetime = CalendarEvent.value_start_datetime(self, None)
         end_datetime = CalendarEvent.value_end_datetime(self, None)
-        return f"{format_m2m(self.get_groups())} {self.get_subject()} {start_datetime} - {end_datetime}"
+        return (
+            f"{format_m2m(self.get_groups())} {self.get_subject()}"
+            + f" {start_datetime} - {end_datetime}"
+        )
 
     class Meta:
         verbose_name = _("Documentation")

aleksis/apps/alsijil/schema/__init__.py

 from django.db.models.query_utils import Q
 
 import graphene
-from graphene_django import DjangoObjectType
 
-from aleksis.core.schema.base import DjangoFilterMixin, FilterOrderList
+from aleksis.core.schema.base import FilterOrderList
 
-from ..models import Documentation, Participation
+from ..models import Documentation
 from .documentation import (
     DocumentationBatchCreateMutation,
     DocumentationBatchPatchMutation,

aleksis/apps/alsijil/schema/documentation.py

-from django.core.exceptions import PermissionDenied
-
-import graphene
-from calendarweek import CalendarWeek
-from graphene_django import DjangoListField
 from graphene_django.types import DjangoObjectType
 from graphene_django_cud.mutations import (
     DjangoBatchCreateMutation,