python - 如何根据 Python 中的部分匹配从文本中删除子字符串？

Question

我有一个很长的文本 block ，其中包含我想根据部分匹配 (90%) 删除的子文本。

string = "Adam is a boy who lives in Michigan.  
        He loves to eat apples and oranges. 
        He also enjoys playing with his dog and cat. 
        Adam is a happy boy."

substring = "He loves to apple oranges"

我想回去

"Adam is a boy who lives in Michigan.  
 He also enjoys playing with his dog and cat. 
 Adam is a happy boy."

单词“eat”和“and”没有出现在子字符串中，但我想删除整个句子“He loves to eat apples and oranges”。我不太确定该怎么做。谢谢!

Answer 1

您可以使用 difflib.SequenceMatcher :

from difflib import SequenceMatcher
'\n'.join(s for s in string.splitlines() if SequenceMatcher(' '.__eq__, s, substring).ratio() < 0.6)

返回:

Adam is a boy who lives in Michigan.
He also enjoys playing with his dog and cat.
Adam is a happy boy.

演示:https://ideone.com/twDu1r