diff --git a/Lib/dataclasses.py b/Lib/dataclasses.py index 8703e0763892fe..9301ba2d9623a5 100644 --- a/Lib/dataclasses.py +++ b/Lib/dataclasses.py @@ -1186,6 +1186,7 @@ def _process_class(cls, init, repr, eq, order, unsafe_hash, frozen, # classes with slots. These could be slightly more performant if we generated # the code instead of iterating over fields. But that can be a project for # another day, if performance becomes an issue. + def _dataclass_getstate(self): return [getattr(self, f.name) for f in fields(self)]