phonetic1 = [[doublemetaphone.doublemetaphone(value) for value in row] for row in data1]

phonetic2 = [[doublemetaphone.doublemetaphone(value) for value in row] for row in data2]

matches = []

for i1, row1 in enumerate(phonetic1):

for i2, row2 in enumerate(phonetic2):

match = True

for metaphone1, metaphone2 in zip(row1, row2):

possibilities = [

metaphone1[0] == metaphone2[0],

metaphone1[0] == metaphone2[1],

metaphone1[1] == metaphone2[0],

metaphone1[1] == metaphone2[1] != ''

]

if True not in possibilities: match = False

if match: matches.append((i1, i2, 1))