box.py 文件源码

def _to_yaml(obj, filename=None, default_flow_style=False,
             encoding="utf-8", errors="strict",
             **yaml_kwargs):
    if filename:
        with open(filename, 'w',
                  encoding=encoding, errors=errors) as f:
            yaml.dump(obj, stream=f,
                      default_flow_style=default_flow_style,
                      **yaml_kwargs)
    else:
        return yaml.dump(obj,
                         default_flow_style=default_flow_style,
                         **yaml_kwargs)