(cfg, str_or_buffer)
Convert a dictionary to YAML and return the string or write it out
    depending on the type of `str_or_buffer`.

    Parameters
    ----------
    cfg : dict or OrderedDict
        Dictionary or OrderedDict to convert.
    str_or_buffer : None, str, or buffer
        If None: the YAML string will be returned.
        If string: YAML will be saved to a file.
        If buffer: YAML will be written to buffer using the ``.write`` method.

    Returns
    -------
    str or None
        YAML string if `str_or_buffer` is None, otherwise None since YAML
        is written out to a separate destination.
Convert a dictionary to YAML and return the string or write it out
    depending on the type of `str_or_buffer`.
Convert a dictionary to YAML and return the string or write it out depending on the type of str_or_buffer .
def convert_to_yaml(cfg, str_or_buffer):
    """
    Convert a dictionary to YAML and return the string or write it out
    depending on the type of `str_or_buffer`.

    Parameters
    ----------
    cfg : dict or OrderedDict
        Dictionary or OrderedDict to convert.
    str_or_buffer : None, str, or buffer
        If None: the YAML string will be returned.
        If string: YAML will be saved to a file.
        If buffer: YAML will be written to buffer using the ``.write`` method.

    Returns
    -------
    str or None
        YAML string if `str_or_buffer` is None, otherwise None since YAML
        is written out to a separate destination.

    """
    order = None
    if isinstance(cfg, OrderedDict):
        order = []

    s = ordered_yaml(cfg, order)

    if not str_or_buffer:
        return s
    elif isinstance(str_or_buffer, str):
        with open(str_or_buffer, 'w') as f:
            f.write(s)
    else:
        str_or_buffer.write(s)
def convert_to_yaml ( cfg , str_or_buffer ) : order = None if isinstance ( cfg , OrderedDict ) : order = [ ] s = ordered_yaml ( cfg , order ) if not str_or_buffer : return s elif isinstance ( str_or_buffer , str ) : with open ( str_or_buffer , 'w' ) as f : f . write ( s ) else : str_or_buffer . write ( s )