在python中删除不在NLTK库中的停用词

import nltk
from nltk.corpus import stopwords

nltk.download('stopwords')

stop_words = set(stopwords.words('english'))

def remove_stopwords(text):
    tokens = text.split()
    filtered_tokens = [word for word in tokens if word.lower() not in stop_words]
    return ' '.join(filtered_tokens)

text = "This is an example sentence with some stopwords."
filtered_text = remove_stopwords(text)
print(filtered_text)

This example sentence stopwords.