class YAMLObject(with_metaclass(YAMLObjectMetaclass)): # type: ignore
"""
An object that can dump itself to a YAML stream
and load itself from a YAML stream.
"""
__slots__ = () # no direct instantiation, so allow immutable subclasses
yaml_constructor = Constructor
yaml_representer = Representer
yaml_tag = None # type: Any
yaml_flow_style = None # type: Any
@classmethod
def from_yaml(cls, constructor, node):
# type: (Any, Any) -> Any
"""
Convert a representation node to a Python object.
"""
return constructor.construct_yaml_object(node, cls)
@classmethod
def to_yaml(cls, representer, data):
# type: (Any, Any) -> Any
"""
Convert a Python object to a representation node.
"""
return representer.represent_yaml_object(
cls.yaml_tag, data, cls, flow_style=cls.yaml_flow_style)
class YAMLObject(with_metaclass(YAMLObjectMetaclass)):
"""
An object that can dump itself to a YAML stream
and load itself from a YAML stream.
"""
__slots__ = () # no direct instantiation, so allow immutable subclasses
yaml_loader = Loader
yaml_dumper = Dumper
yaml_tag = None
yaml_flow_style = None
@classmethod
def from_yaml(cls, loader, node):
"""
Convert a representation node to a Python object.
"""
return loader.construct_yaml_object(node, cls)
@classmethod
def to_yaml(cls, dumper, data):
"""
Convert a Python object to a representation node.
"""
return dumper.represent_yaml_object(cls.yaml_tag,
data,
cls,
flow_style=cls.yaml_flow_style)
