Walrus again

python-attrs · Apr 13, 2022 · aac7a49 · aac7a49
1 parent 473428e
commit aac7a49
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/cattrs/_compat.py b/src/cattrs/_compat.py
@@ -284,8 +284,9 @@ def is_union_type(obj):
             )
 
         def get_newtype_base(typ: Any) -> Optional[type]:
+            supertype = getattr(typ, "__supertype__", None)
             if (
-                (supertype := getattr(typ, "__supertype__", None)) is not None
+                supertype is not None
                 and getattr(typ, "__qualname__", "") == "NewType.<locals>.new_type"
                 and typ.__module__ in ("typing", "typing_extensions")
             ):