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bpo-39481: PEP 585 for difflib, filecmp, fileinput (#19422)

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Ethan Smith 2020-04-09 21:47:31 -07:00 • committed by GitHub
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commit e3ec44d692
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Lib/difflib.py
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@ -32,6 +32,7 @@ __all__ = ['get_close_matches', 'ndiff', 'restore', 'SequenceMatcher',
from heapq import nlargest as _nlargest
from collections import namedtuple as _namedtuple
from types import GenericAlias
Match = _namedtuple('Match', 'a b size')
@ -685,6 +686,9 @@ class SequenceMatcher:
# shorter sequence
return _calculate_ratio(min(la, lb), la + lb)
__class_getitem__ = classmethod(GenericAlias)
def get_close_matches(word, possibilities, n=3, cutoff=0.6):
"""Use SequenceMatcher to return list of the best "good enough" matches.