Fix types.GenericAlias lookup crash

Fixes python#17542
hauntsaninja · Jul 20, 2024 · 2ad4f48 · 2ad4f48
1 parent 55a0812
commit 2ad4f48
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mypy/checkexpr.py b/mypy/checkexpr.py
@@ -4341,7 +4341,7 @@ def visit_index_with_type(
         elif isinstance(left_type, FunctionLike) and left_type.is_type_obj():
             if left_type.type_object().is_enum:
                 return self.visit_enum_index_expr(left_type.type_object(), e.index, e)
-            elif left_type.type_object().type_vars:
+            elif left_type.type_object().type_vars and self.chk.options.python_version >= (3, 9):
                 return self.named_type("types.GenericAlias")
             elif (
                 left_type.type_object().fullname == "builtins.type"