正則表達式替換包含指定 Substring 的單詞

Question

我正在嘗試替換字符串中包含某個 substring 的單詞。 這是一個例子

import regex as re

given_in = 'My cat is not like other cats'
desired_out = 'My foo is not like other foo'

我努力了

print(re.sub('cat', 'foo', given_in))
>>>> 'My foo is not like other foos'

和

print(re.sub('.*cat.*', 'foo', given_in))
>>>> 'foo'

這里的正確方法是什么？

Answer 1

這將起作用：

import re

given_in = 'My cat is not like other cat'
desired_out = 'My foo is not like other foo'

out = re.subn("\w*(cat)\w*", "foo", given_in)
print(out)

output：

'My foo is not like other foo'