您的代码对我有效：CSV：

oldText
https://abc.xy/oldText asd
https://abc.xy/oldTe asd
https://abc.xy/oldT
https://abc.xy/old
https://abc.xy/ol

代码：

import pandas as pd
import re

def remove_links(text):
    text = re.sub(r'http\S+', '', text) 
    text = text.strip('[link]') 

    return text

df = pd.read_csv('test2.csv')
df['newText'] = df['oldText'].apply(remove_links)
print(df)

结果：

oldText newText
0  https://abc.xy/oldText asd     asd
1    https://abc.xy/oldTe asd     asd
2         https://abc.xy/oldT        
3          https://abc.xy/old        
4           https://abc.xy/ol