Ticket #53 (closed enhancement: fixed)
Allow for immutable subclasses of YAMLObject
|Reported by:||toidinamai||Owned by:||xi|
YAMLObject are not directly instantiated so they don't need their own instance attribute (i.e. an own dict). Because of that they should define an empty slots and let subclasses decide whether they want arbitrary instance attributes or not:
--- lib/yaml/__init__.py (revision 251) +++ lib/yaml/__init__.py (working copy) @@ -272,6 +272,9 @@ yaml_tag = None yaml_flow_style = None + # no direct instantiation, so allow for immutable subclasses + __slots__ = () + def from_yaml(cls, loader, node): """ Convert a representation node to a Python object.
The same is basically also true for YAMLObjectMetaclass but I doubt there is much use for this in practice.