Allow returning Literals in __new__

Unblocks python/typeshed#10465
Gobot1234 · Jul 15, 2023 · 396e8ee · 396e8ee
1 parent 3240da4
commit 396e8ee
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/mypy/checker.py b/mypy/checker.py
@@ -1475,7 +1475,8 @@ def check___new___signature(self, fdef: FuncDef, typ: CallableType) -> None:
                 "but must return a subtype of",
             )
         elif not isinstance(
-            get_proper_type(bound_type.ret_type), (AnyType, Instance, TupleType, UninhabitedType)
+            get_proper_type(bound_type.ret_type),
+            (AnyType, Instance, TupleType, UninhabitedType, LiteralType),
         ):
             self.fail(
                 message_registry.NON_INSTANCE_NEW_TYPE.format(