Very different results from javascript.

[choppsv1]

The python code produces very different (and worrisome) results when compared to the javascript version. I use the python code in my change app to verify the password passes muster prior to changing it, so if anything I'd want it to be more strict that the client side JS version.

Password: FooBar2016
JS: score: 0, entropy: 18.541
Python: score: 2, entropy: 30.089

Password: ZagDag2016
JS: score: 2, entropy: 32.783
Python: score: 4, entropy: 44.264

If I had to choose I'd pick the JS version, the python one looks way too lenient.

(full result for FooBar2016 below.
JS:
Calling zxcvbn
{ password: 'FooBar2016',
entropy: 18.541,
match_sequence:
[ { pattern: 'dictionary',
i: 0,
j: 5,
token: 'FooBar',
matched_word: 'foobar',
rank: 908,
dictionary_name: 'passwords',
reversed: false,
base_entropy: 9.826548487290916,
uppercase_entropy: 4.392317422778761,
reversed_entropy: 0,
l33t_entropy: 0,
entropy: 14.218865910069677 },
{ pattern: 'regex',
token: '2016',
i: 6,
j: 9,
regex_name: 'recent_year',
regex_match: [Object],
entropy: 4.321928094887363 } ],
crack_time: 19.068,
crack_time_display: '19.068000000000023 seconds',
score: 0,
calc_time: 8 }

Python:

python -c 'import zxcvbn; print zxcvbn.password_strength("FooBar2016")'
{'crack_time_display': '17.0 hours', 'crack_time': 57103.66, 'score': 2, 'entropy': 30.089, 'password': 'FooBar2016', 'calc_time': 0.0005788803100585938, 'match_sequence': [{'l33t_entropy': 0, 'dictionary_name': 'passwords', 'matched_word': 'foobar', 'bas
e_entropy': 9.826548487290916, 'i': 0, 'pattern': 'dictionary', 'j': 5, 'rank': 908, 'token': 'FooBar', 'entropy': 14.285980105928214, 'uppercase_entropy': 4.459431618637297}, {'i': 6, 'pattern': 'spatial', 'j': 8, 'shifted_count': 0, 'token': '201', 'ent
ropy': 9.848831558033764, 'graph': 'keypad', 'turns': 2}, {'i': 9, 'pattern': 'bruteforce', 'j': 9, 'token': '6', 'entropy': 5.954196310386876, 'cardinality': 62}]}

[FirefighterBlu3]

it's not a perfect port of JS -> Python apparently, different match sequences are being executed. the JS original comes executes the dictionary and regex patterns. the python port executes the dictionary, spatial, and bruteforce patterns.

[FirefighterBlu3]

in any case, it looks like this project has been abandoned by the original owners as there hasn't been any activity in quite a while. if we want it fixed, we'll have to do it ourselves.