fuzz_py.token_set_ratio and fuzz.token_set_ratio have different results

[BeanWei]

>>> fuzz_py.token_set_ratio("js", "vue js")
80.0
>>> fuzz.token_set_ratio("js", "vue js")
100.0

[Max Bachmann]

Thanks for reporting. This is a bug in the pure python fallback implementation of token_set_ratio. I fixed it in 9993c17