def none_to_empty_list(*args):
    """Replaces None inputs with an empty list

    Examples
    --------
    Single input case

    >>> none_to_empty_list(None)
    []

    Multiple input case

    >>> a, b, c = None, 'woo', 34
    >>> none_to_empty_list(a, b, c)
    [[], 'woo', 34]
    """
    outputs = []
    for arg in args:
        outputs.append(arg if arg is not None else [])
    if len(outputs) == 1:
        return outputs[0]
    else:
        return outputs
