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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 _prepare_nameparser_constants():
 """Prepare nameparser Constants. Remove nameparser's titles and use our own and add as suffixes the roman numerals. Configuration is the same for all names (i.e. instances). """

    constants = Constants()
    roman_numeral_suffixes = [u'v', u'vi', u'vii', u'viii', u'ix', u'x',
                              u'xii', u'xiii', u'xiv', u'xv']
    titles = [u'Dr', u'Prof', u'Professor', u'Sir', u'Editor', u'Ed', u'Mr',
              u'Mrs', u'Ms', u'Chair', u'Co-Chair', u'Chairs', u'co-Chairs']
    constants.titles.remove(*constants.titles).add(*titles)
    constants.suffix_not_acronyms.add(*roman_numeral_suffixes)
    return constants