为什么这段string.punctuation代码不能剥离标点符号？

Question

我搞不懂为什么这段代码不能按照我想要的方式工作。我正在读取一个txt文件，并将每个项目(以逗号分隔)打印到新行上。每一项都用"“括起来，还包含标点符号。我正在尝试删除这个标点符号。我熟悉string.punctuation，并在我的示例中使用它进行测试，但它在我循环遍历的项上失败，请参见以下内容：

def read_word_lists(path):
    import string
    with open(path, encoding='utf-8') as f:
        lines = f.readlines()
        for line in lines[0].split(','):
            line = str(line)
            line = line.strip().lower()
            print(''.join(word.strip(string.punctuation) for word in line))
            print(line)
            print(''.join(word.strip(string.punctuation) for word in '"why, does this work?! and not above?"'))

                
read_word_lists('file.txt')

结果是这样的：

trying to strip punctuation:  “you never”
originial:  “you never”
test:  why does this work and not above
trying to strip punctuation:  “you always
originial:  “you always"
test:  why does this work and not above
trying to strip punctuation:  ” “your problem is”
originial:  ” “your problem is”
test:  why does this work and not above
trying to strip punctuation:  “the trouble with you is”
originial:  “the trouble with you is”
test:  why does this work and not above

有什么想法为什么“尝试剥离标点符号”的输出不起作用吗？

编辑

原始文件如下所示(如果有用)：

"YOU NEVER”, “YOU ALWAYS", ” “YOUR PROBLEM IS”, “THE TROUBLE WITH YOU IS”

Answer 1

您正在尝试删除unicode标点符号，而string.punctuation只包含ascii标点符号。

您可以使用以下代码来生成包含所有string.punctuation标点字符的字符串，而不是使用Unicode：

import unicodedata
import sys

punctuation = "".join((chr(i) for i in range(sys.maxunicode) if unicodedata.category(chr(i)).startswith('P')))

祝好运!