Python:BeautifulSoup UnboundLocalError

Question

我正在尝试从一些 .txt 格式的文档中删除 HTML 标签。但是，据我所知，bs4 似乎有错误。我收到的错误如下:

 Traceback (most recent call last):
  File "E:/Google Drive1/Thesis stuff/Python/database/get_missing_10ks.py", line 13, in <module>
    text = BeautifulSoup(file_read, "html.parser")
  File "C:\Users\Adrian PC\AppData\Local\Programs\Python\Python37\lib\site-packages\bs4\__init__.py", line 282, in __init__
    self._feed()
  File "C:\Users\Adrian PC\AppData\Local\Programs\Python\Python37\lib\site-packages\bs4\__init__.py", line 343, in _feed
    self.builder.feed(self.markup)
  File "C:\Users\Adrian PC\AppData\Local\Programs\Python\Python37\lib\site-packages\bs4\builder\_htmlparser.py", line 247, in feed
    parser.feed(markup)
  File "C:\Users\Adrian PC\AppData\Local\Programs\Python\Python37\lib\html\parser.py", line 111, in feed
    self.goahead(0)
  File "C:\Users\Adrian PC\AppData\Local\Programs\Python\Python37\lib\html\parser.py", line 179, in goahead
    k = self.parse_html_declaration(i)
  File "C:\Users\Adrian PC\AppData\Local\Programs\Python\Python37\lib\html\parser.py", line 264, in parse_html_declaration
    return self.parse_marked_section(i)
  File "C:\Users\Adrian PC\AppData\Local\Programs\Python\Python37\lib\_markupbase.py", line 160, in parse_marked_section
    if not match:
UnboundLocalError: local variable 'match' referenced before assignment

我使用的代码如下:

import os
from bs4 import BeautifulSoup

path_to_10k = "D:/10ks/list_missing_10k/"

path_to_saved_10k = "D:/10ks/list_missing_10kp/"

list_txt = os.listdir(path_to_10k)

for name in list_txt:
    file = open(path_to_10k + name, "r+", encoding="utf-8")
    file_read = file.read()
    text = BeautifulSoup(file_read, "html.parser")
    text = text.get_text("\n")
    file2 = open(path_to_saved_10k + name, "w+", encoding="utf-8")
    file2.write(str(text))
    file2.close()
    file.close()

问题是我已经在 51320 个文档上使用了这个方法并且它工作得很好，但是，有一些文档它不能做。当我打开那些 HTML 文档时，它们对我来说似乎是一样的。如果有人能指出可能是什么问题以及如何解决它，那就太好了。谢谢!

文件示例:https://files.fm/u/2s45uafp

Answer 1

https://github.com/scrapy/w3lib
https://w3lib.readthedocs.io/en/latest/

pip install w3lib

和

from w3lib.html import remove_tags

然后remove_tags(data)返回清除数据。