fix Optional typing hint for SerializerMethodField (#428)

2019-09-29 18:01:28 +02:00
parent 8578b93eba
commit 1352c2a23b
2 changed files with 43 additions and 0 deletions
@@ -610,6 +610,8 @@ class SerializerMethodFieldInspector(FieldInspector):
            # look for Python 3.5+ style type hinting of the return value
            hint_class = inspect_signature(method).return_annotation

+            if not inspect.isclass(hint_class) and hasattr(hint_class, '__args__'):
+                hint_class = hint_class.__args__[0]
            if inspect.isclass(hint_class) and not issubclass(hint_class, inspect._empty):
                type_info = get_basic_type_info_from_hint(hint_class)