box.py 文件源码

def to_yaml(self, filename=None, default_flow_style=False,
                    encoding="utf-8", errors="strict",
                    **yaml_kwargs):
            """
            Transform the BoxList object into a YAML string.

            :param filename:  If provided will save to file
            :param default_flow_style: False will recursively dump dicts
            :param encoding: File encoding
            :param errors: How to handle encoding errors
            :param yaml_kwargs: additional arguments to pass to yaml.dump
            :return: string of YAML or return of `yaml.dump`
            """
            return _to_yaml(self.to_list(), filename=filename,
                            default_flow_style=default_flow_style,
                            encoding=encoding, errors=errors, **yaml_kwargs)