Further refactoring.

choices.py

@@ -8,8 +8,8 @@ def season_choices():
     """
     sql, args = db.load_season()
     seasons = db.query_db(sql, args, cls=models.Season)
-    choices = [(s.id, f'{s.code}: {s.game}') for s in seasons]
-    choices.insert(0, (-1, 'No Season'))
+    choices = [(s.id, f"{s.code}: {s.game}") for s in seasons]
+    choices.insert(0, (-1, "No Season"))
     return choices
 
 
@@ -18,6 +18,7 @@ class SeasonChoicesIterable:
     This is used to declare choices for WTForms SelectFields at class definition time.
     Be aware that this uses an undocumented WTForms feature and is not guaranteed to work.
     """
+
     def __iter__(self):
         for choice in season_choices():
             yield choice