From 0735514016edc8c5a1abcb42741f0402ad64929e Mon Sep 17 00:00:00 2001 From: Richard To <539889+richard-to@users.noreply.github.com> Date: Mon, 3 Aug 2026 21:55:25 +0000 Subject: [PATCH] Fix dataclass annotations bug --- mesop/dataclass_utils/dataclass_utils.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mesop/dataclass_utils/dataclass_utils.py b/mesop/dataclass_utils/dataclass_utils.py index f913a4a1d..502ce63a7 100644 --- a/mesop/dataclass_utils/dataclass_utils.py +++ b/mesop/dataclass_utils/dataclass_utils.py @@ -150,7 +150,8 @@ def _recursive_update_dataclass_from_json_obj(instance: Any, json_dict: Any): # and the instance has an attribute with a matching name, # we assume the dict should be converted into a dataclass. attr = getattr(instance, key) - item_instance = instance.__annotations__[key].__args__[0]() + type_hints = get_type_hints(type(instance)) + item_instance = type_hints[key].__args__[0]() updated_list.append( _recursive_update_dataclass_from_json_obj(item_instance, item) )