Add type for fieldsets in modeladmin subclass

Author: dmoisset

polls/admin.py

@@ -1,3 +1,5 @@
+from typing import Any, Dict, List, Optional, Tuple
+
 from django.contrib import admin  # type: ignore
 
 from .models import Question, Choice
@@ -7,12 +9,16 @@ class ChoiceInline(admin.TabularInline):
     model = Choice
     extra = 3
 
+Title = Optional[str]
+Options = Dict[str, Any]
+FieldSet = Tuple[Title, Options]
+FieldSets = List[FieldSet]
 
 class QuestionAdmin(admin.ModelAdmin):
     fieldsets = [
         (None,               {'fields': ['question_text']}),
         ('Date information', {'fields': ['pub_date']}),
-    ]
+    ]  # type: FieldSets
     inlines = [ChoiceInline]
     list_display = ('question_text', 'pub_date', 'was_published_recently')
     list_filter = ['pub_date']

polls/views.py

@@ -22,6 +22,7 @@ def get_queryset(self) -> QuerySet:
             pub_date__lte=timezone.now()
         ).order_by('-pub_date')[:5]
 
+
 class DetailView(generic.DetailView):
     model = Question
     template_name = 'polls/detail.html'