def latinize(value):
    """
    Converts (transliterates) greek letters to latin equivalents.
    """
    def replace_double_character(match):
        search = ('Θ Χ Ψ '
                  'θ χ ψ '
                  'ΟΥ ΑΥ ΕΥ '
                  'Ου Αυ Ευ '
                  'ου αυ ευ').split()
        replace = ('TH CH PS '
                   'th ch ps '
                   'OU AU EU '
                   'Ou Au Eu '
                   'ou au eu').split()
        matched = match.group(0)
        if matched in search:
            return replace[search.index(matched)]
        return matched

    search = 'ΑΒΓΔΕΖΗΙΚΛΜΝΞΟΠΡΣΣΤΥΦΩαβγδεζηικλμνξοπρσςτυφω'
    replace = 'AVGDEZIIKLMNXOPRSSTUFOavgdeziiklmnxoprsstyfo'

    def replace_greek_character(match):
        matched = list(match.group(0))
        value = map(lambda l: replace[search.find(l)], matched)
        return ''.join(value)

    return re.sub(r'[{0}]+'.format(search),
                  replace_greek_character, re.sub(
        r'([ΘΧΨθχψ]+|ΟΥ|ΑΥ|ΕΥ|Ου|Αυ|Ευ|ου|αυ|ευ)',
        replace_double_character,
        remove_accents(value)))
def latinize ( value ) : def replace_double_character ( match ) : search = ( 'Θ Χ Ψ ' 'θ χ ψ ' 'ΟΥ ΑΥ ΕΥ ' 'Ου Αυ Ευ ' 'ου αυ ευ' ) . split ( ) replace = ( 'TH CH PS ' 'th ch ps ' 'OU AU EU ' 'Ou Au Eu ' 'ou au eu' ) . split ( ) matched = match . group ( 0 ) if matched in search : return replace [ search . index ( matched ) ] return matched search = 'ΑΒΓΔΕΖΗΙΚΛΜΝΞΟΠΡΣΣΤΥΦΩαβγδεζηικλμνξοπρσςτυφω' replace = 'AVGDEZIIKLMNXOPRSSTUFOavgdeziiklmnxoprsstyfo' def replace_greek_character ( match ) : matched = list ( match . group ( 0 ) ) value = map ( lambda l : replace [ search . find ( l ) ] , matched ) return '' . join ( value ) return re . sub ( r'[{0}]+' . format ( search ) , replace_greek_character , re . sub ( r'([ΘΧΨθχψ]+|ΟΥ|ΑΥ|ΕΥ|Ου|Αυ|Ευ|ου|αυ|ευ)' , replace_double_character , remove_accents ( value ) ) )
Converts (transliterates) greek letters to latin equivalents.