如何使此程序忽略标点符号？

import re

def remove_punctuation(text):
    return re.sub(r'[^\w\s]', '', text)

text = "Hello, World!"
clean_text = remove_punctuation(text)
print(clean_text)  # 输出: Hello World

import string

def remove_punctuation(text):
    translator = str.maketrans('', '', string.punctuation)
    return text.translate(translator)

text = "Hello, World!"
clean_text = remove_punctuation(text)
print(clean_text)  # 输出: Hello World

import nltk
from nltk.tokenize import word_tokenize

def remove_punctuation(text):
    tokens = word_tokenize(text)
    words = [word for word in tokens if word.isalnum()]
    return ' '.join(words)

text = "Hello, World!"
clean_text = remove_punctuation(text)
print(clean_text)  # 输出: Hello World