fuzz.partial_ratio result is wrong

[changjiangbailang]

Why the score is 0? I think it is 50

[maxbachmann]

This is a known issue: seatgeek/fuzzywuzzy#79. The behavior changes in case you have python-Levenshtein installed.

1. With python-Levenshtein it simply does not find any alignment in your case -> score 0
2. without python-Levenshtein it finds the alignment "zzab" <-> "abcd" -> score 50
3. with the updated version from replace python-Levenshtein with rapidfuzz #10 it finds the alignment "zzab" <-> "ab" -> score 67

@josegonzalez this is another case where the current implementation does not find the optimal alignment both with and without the use of python-Levenshtein.

[maxbachmann]

@bigtoast this was fixed by #10