Python 比较文本相似性的方法(difflib,Levenshtein)

input_and_output = [1, 2, '你好', 世界', 12.34, 45.6, -21, '中国', '美丽']

import difflib #python 自带库，不需额外安装

In [49]: test1
Out[49]: ['你好', '我是谁']

In [50]: test2
Out[50]: ['你好啊', '我谁']

In [51]: test3
Out[51]: [12, 'nihao']

In [52]: test4
Out[52]: ['你好', 'woshi']

In [53]: difflib.SequenceMatcher(a=test1, b=test2).quick_ratio()
Out[53]: 0.0

In [54]: difflib.SequenceMatcher(a=test1, b=test4).ratio()
Out[54]: 0.5

#pip install python-Levenshtein

import Levenshtein


In [56]: Levenshtein.distance(','.join(test1), ','.join(test2))
Out[56]: 2

In [57]: Levenshtein.distance(','.join(test1), ','.join(test4))
Out[57]: 5