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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _handle_author(author):
 """ Yields aulast and auinit from an author's full name. Parameters author : str or unicode Author fullname, e.g. "Richard L. Nixon". Returns ------- aulast : str Author surname. auinit : str Author first-initial. """


    lname = author.split(' ')

    try:
        auinit = lname[0][0]
        final = lname[-1].upper()
        if final in ['JR.', 'III']:
            aulast = lname[-2].upper() + " " + final.strip(".")
        else:
            aulast = final
    except IndexError:
        raise ValueError("malformed author name")

    return aulast, auinit