fix minor code smells

ormar/queryset/prefetch_query.py

@@ -38,10 +38,11 @@ def sort_models(models: List["Model"], orders_by: Dict) -> List["Model"]:
     ]
     sort_criteria = sort_criteria[::-1]
     for criteria in sort_criteria:
-        if criteria[1] == "desc":
-            models.sort(key=lambda x: getattr(x, criteria[0]), reverse=True)
+        key, value = criteria
+        if value == "desc":
+            models.sort(key=lambda x: getattr(x, key), reverse=True)
         else:
-            models.sort(key=lambda x: getattr(x, criteria[0]))
+            models.sort(key=lambda x: getattr(x, key))
     return models
 
 

ormar/queryset/queryset.py

@@ -51,8 +51,7 @@ class QuerySet:
     ) -> "QuerySet":
         if issubclass(owner, ormar.Model):
             return self.__class__(model_cls=owner)
-        else:  # pragma nocover
-            return self.__class__()
+        return self.__class__()  # pragma: no cover
 
     @property
     def model_meta(self) -> "ModelMeta":