def always_str_list(list_or_str):
    """Makes sure list_or_str is always a tuple or list

    Parameters
    ----------
    list_or_str: str or str iterable (tuple, list, ...)
        Parameter to set as iterable if single str.

    Returns
    -------
    Iterable
        Iterable equivalent to list_or_str."""
    if isinstance(list_or_str, str):
        return (list_or_str,)
    return list_or_str