import petl.interactive as etl
etl.__version__

'0.26'

table1 = (('name', 'kids'),
          ('John', '1'),
          ('Jenny', '2'),
          ('James', '2'),
          ('Joan', '4'))

table2 = (('name', 'age'),
          ('John', '33'),
          ('Jenni', ''),
          ('Jomes', '20'),
          ('Joan', ''))

from fuzzywuzzy import fuzz

table3 = (etl
    .wrap(table1)
    .prefixheader('l_')
    .crossjoin(etl.wrap(table2).prefixheader('r_'))
    .addfield('fuzz', lambda row: fuzz.partial_ratio(row.l_name, row.r_name))
    .selectge('fuzz', 80)
)
table3

l_name	l_kids	r_name	r_age	fuzz
John	1	John	33	100
Jenny	2	Jenni		80
James	2	Jomes	20	80
Joan	4	Joan		100