def add_multi_representer(data_type,
multi_representer,
Dumper=None,
representer=Representer):
# type: (Any, Any, Any, Any) -> None
"""
Add a representer for the given type.
multi_representer is a function accepting a Dumper instance
and an instance of the given data type or subtype
and producing the corresponding representation node.
"""
if Dumper is None:
representer.add_multi_representer(data_type, multi_representer)
else:
if hasattr(Dumper, 'add_multi_representer'):
Dumper.add_multi_representer(data_type, multi_representer)
return
if issubclass(Dumper, BaseDumper):
BaseRepresenter.add_multi_representer(data_type, multi_representer)
elif issubclass(Dumper, SafeDumper):
SafeRepresenter.add_multi_representer(data_type, multi_representer)
elif issubclass(Dumper, Dumper):
Representer.add_multi_representer(data_type, multi_representer)
elif issubclass(Dumper, RoundTripDumper):
RoundTripRepresenter.add_multi_representer(data_type,
multi_representer)
else:
raise NotImplementedError
def __init__(self,
stream,
default_style=None,
default_flow_style=None,
canonical=None,
indent=None,
width=None,
allow_unicode=None,
line_break=None,
encoding=None,
explicit_start=None,
explicit_end=None,
version=None,
tags=None,
block_seq_indent=None,
top_level_colon_align=None,
prefix_colon=None):
Emitter.__init__(self,
stream,
canonical=canonical,
indent=indent,
width=width,
allow_unicode=allow_unicode,
line_break=line_break,
block_seq_indent=block_seq_indent)
Serializer.__init__(self,
encoding=encoding,
explicit_start=explicit_start,
explicit_end=explicit_end,
version=version,
tags=tags)
BaseRepresenter.__init__(self,
default_style=default_style,
default_flow_style=default_flow_style)
BaseResolver.__init__(self)
def __init__(
self,
stream,
default_style=None,
default_flow_style=None,
canonical=None,
indent=None,
width=None,
allow_unicode=None,
line_break=None,
encoding=None,
explicit_start=None,
explicit_end=None,
version=None,
tags=None,
block_seq_indent=None,
top_level_colon_align=None,
prefix_colon=None,
):
# type: (Any, StreamType, Any, Any, Optional[bool], Optional[int], Optional[int], Optional[bool], Any, Any, Optional[bool], Optional[bool], Any, Any, Any, Any, Any) -> None # NOQA
Emitter.__init__(
self,
stream,
canonical=canonical,
indent=indent,
width=width,
allow_unicode=allow_unicode,
line_break=line_break,
block_seq_indent=block_seq_indent,
dumper=self,
)
Serializer.__init__(
self,
encoding=encoding,
explicit_start=explicit_start,
explicit_end=explicit_end,
version=version,
tags=tags,
dumper=self,
)
BaseRepresenter.__init__(
self,
default_style=default_style,
default_flow_style=default_flow_style,
dumper=self,
)
BaseResolver.__init__(self, loadumper=self)
def __init__(self, stream,
default_style=None, default_flow_style=None,
canonical=None, indent=None, width=None,
allow_unicode=None, line_break=None,
encoding=None, explicit_start=None, explicit_end=None,
version=None, tags=None, block_seq_indent=None,
top_level_colon_align=None, prefix_colon=None):
# type: (StreamType, Any, Any, Any, bool, Union[None, int], Union[None, int], bool, Any, Any, Union[None, bool], Union[None, bool], Any, Any, Any, Any, Any) -> None # NOQA
CEmitter.__init__(self, stream, canonical=canonical,
indent=indent, width=width, encoding=encoding,
allow_unicode=allow_unicode, line_break=line_break,
explicit_start=explicit_start,
explicit_end=explicit_end,
version=version, tags=tags)
self._emitter = self._serializer = self._representer = self
BaseRepresenter.__init__(self, default_style=default_style,
default_flow_style=default_flow_style, dumper=self)
BaseResolver.__init__(self, loadumper=self)
def _yaml_none_representer(representer: BaseRepresenter,
data: Mapping[str, Any]) -> ScalarNode:
"""Yaml repr for ``None`` python values.
Parameters
----------
representer : BaseRepresenter
Representer of the :class:`YAML` instance.
data : Mapping[str, Any]
Data to write to yaml.
Returns
-------
ScalarNode
Node representing the value.
References
----------
https://stackoverflow.com/a/44314840
"""
return representer.represent_scalar("tag:yaml.org,2002:null", "null")