fuzz.py 文件源码

def ratio(s1, s2):

    if s1 is None:
        raise TypeError("s1 is None")
    if s2 is None:
        raise TypeError("s2 is None")
    s1, s2 = utils.make_type_consistent(s1, s2)

    if len(s1) == 0 or len(s2) == 0:
        return 0

    m = SequenceMatcher(None, s1, s2)
    return utils.intr(100 * m.ratio())


# todo: skip duplicate indexes for a little more speed