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A Python3 Levenshtein distance (re)implementation of pylev

Project description

A Python3 Levenshtein distance (re)implementation of pylev.

Calculation of Levenshtein distance between strings. Based on the Wikipedia code samples.

What’s new?


  • Python Python 3.3+ or PyPy3


pip install pylev3


Usage is fairly straightforward:

from pylev3 import Levenshtein
assert Levenshtein.classic('', 'cat'), 3
assert Levenshtein.damerau('cat', 'cat'), 0
assert'kitten', 'sitting'), 3
assert Levenshtein.wfi(['cat', 'kitten'], 'abc'), [3, 6]
assert Levenshtein()(['cat', 'kitten'], ['cat', 'abc']), [[0, 3], [5, 6]]

Or use old way (like in pylev):

from pylev3 import wf_levenshtein, wfi_levenshtein, damerau_levenshtein, classic_levenshtein
assert classic_levenshtein('', 'cat'), 3
assert damerau_levenshtein('cat', 'cat'), 0
assert wf_levenshtein('kitten', 'sitting'), 3
assert wfi_levenshtein(['cat', 'kitten'], 'abc'), [3, 6]
assert wf_levenshtein(['cat', 'kitten'], ['cat', 'abc']), [[0, 3], [5, 6]]


New BSD (as authored).


# get
$ git clone
$ cd pylev3
# run
$ python -m unittest tests

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