Fix potential issubclass crash

axnsan12 · Jun 13, 2019 · 753be1a · 753be1a
1 parent 2656696
commit 753be1a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/drf_yasg/inspectors/field.py b/src/drf_yasg/inspectors/field.py
@@ -610,7 +610,7 @@ def field_to_swagger_object(self, field, swagger_object_type, use_references, **
             # look for Python 3.5+ style type hinting of the return value
             hint_class = inspect_signature(method).return_annotation
 
-            if not issubclass(hint_class, inspect._empty):
+            if inspect.isclass(hint_class) and not issubclass(hint_class, inspect._empty):
                 type_info = get_basic_type_info_from_hint(hint_class)
 
                 if type_info is not None: