properties.py 文件源码

def __init__(
        self,
        types=None,  # type: typing.Sequence[Union[type, Property]]
        name=None,  # type: Optional[str]
        required=False,  # type: bool
        versions=None,  # type: Optional[Sequence[Union[str, Version]]]
        name_space=None,  # type: Optional[str]
        prefix=None,  # type: Optional[str]
        attribute=False,  # type: bool
    ):
        if isinstance(types, (type, Property)):
            types = (types,)
        else:
            types = copy(types)
        self.types = types  # type: Optional[Sequence[type]]
        self.name = name
        self.required = required
        self._versions = None  # type: Optional[Union[Mapping[str, Optional[Property]], Set[Union[str, Number]]]]
        self.versions = versions  # type: Optional[Union[Mapping[str, Optional[Property]], Set[Union[str, Number]]]]
        self.name_space = name_space  # type: Optional[str]
        self.prefix = prefix  # type: Optional[str]
        self.attribute = attribute  # type: Optional[str]