improved error text

anikolaienko · anikolaienko · commit 647b0be8d5fa · 2022-10-25T13:11:32.000+03:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,6 @@
 1.2.0 - 2022/10/25
 * [g-pichler] Ability to disable deepcopy on mapping: `use_deepcopy` flag in `map` method.
+* [g-pichler] Improved error text when no spec function exists for `target class`.
 * Updated doc comments.
 
 1.1.3 - 2022/10/07
diff --git a/automapper/mapper.py b/automapper/mapper.py
@@ -242,8 +242,9 @@ def _get_fields(self, target_cls: Type[T]) -> Iterable[str]:
             if classifier(target_cls):
                 return self._classifier_specs[classifier](target_cls)
 
+        target_cls_name = getattr(target_cls, "__name__", type(target_cls))
         raise MappingError(
-            f"No spec function is added for base class of {type(target_cls)}"
+            f"No spec function is added for base class of {target_cls_name!r}"
         )
 
     def _map_subobject(

Original file line number	Diff line number	Diff line change
`@@ -242,8 +242,9 @@ def _get_fields(self, target_cls: Type[T]) -> Iterable[str]:`
`242`	`242`	`if classifier(target_cls):`
`243`	`243`	`return self._classifier_specs[classifier](target_cls)`
`244`	`244`
	`245`	`+ target_cls_name = getattr(target_cls, "__name__", type(target_cls))`
`245`	`246`	`raise MappingError(`
`246`		`- f"No spec function is added for base class of {type(target_cls)}"`
	`247`	`+ f"No spec function is added for base class of {target_cls_name!r}"`
`247`	`248`	`)`
`248`	`249`
`249`	`250`	`def _map_subobject(`