diff options
Diffstat (limited to 'lib/sqlalchemy/util/_py_collections.py')
| -rw-r--r-- | lib/sqlalchemy/util/_py_collections.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/sqlalchemy/util/_py_collections.py b/lib/sqlalchemy/util/_py_collections.py index fd149d5bb..9bf5c3546 100644 --- a/lib/sqlalchemy/util/_py_collections.py +++ b/lib/sqlalchemy/util/_py_collections.py @@ -18,6 +18,8 @@ _VT = TypeVar("_VT", bound=Any) class ImmutableContainer: + __slots__ = () + def _immutable(self, *arg: Any, **kw: Any) -> NoReturn: raise TypeError("%s object is immutable" % self.__class__.__name__) |