python - 从文本中删除所有 HTML 标记及其内容

Question

我想知道如何使用BeautifulSoup.

输入：

... text <strong>ha</strong> ... text

输出：

... text ... text

Answer 1

使用replace_with()（或replaceWith()）：

from bs4 import BeautifulSoup, Tag


text = "text <strong>ha</strong> ... text"

soup = BeautifulSoup(text)

for tag in soup.find_all('strong'):
    tag.replaceWith('')

print soup.get_text() 

印刷：

text  ... text

或者，正如@mata 建议的那样，您可以使用tag.decompose()而不是tag.replaceWith('')- 将产生相同的结果，但看起来更合适。

Answer 2

这是针对 XML 的，如果您想要针对 HTML，请将导入从更改BeautifulStoneSoup为BeautifulSoup

try:
    #Using bs4
    from bs4 import BeautifulStoneSoup
    from bs4 import Tag
except ImportError:
    #Using bs3
    from BeautifulSoup import BeautifulStoneSoup
    from BeautifulSoup import Tag

def info_extract(isoup):
    '''
    Recursively walk a nested list and upon finding a non iterable, return its string
    '''
    tlist = []
    def info_extract_helper(inlist, count = 0):
        if(isinstance(inlist, list)):
            for q in inlist:
                if(isinstance(q, Tag)):
                    info_extract_helper(q.contents, count + 1)
                else:
                    extracted_str = q.strip()
                    if(extracted_str and (count > 1)):
                        tlist.append(extracted_str)
    info_extract_helper([isoup])
    return tlist

xml_str = \
'''
<?xml version="1.0" encoding="UTF-8"?>
    <first-tag>
      <second-tag>
        <events-data>
           <event-date someattrib="test">
                <date>20040913</date>
           </event-date>
        </events-data>

      <events-data>
         <event-date>
           <date>20040913</date>
         </event-date>
      </events-data> 
     </second-tag>
   </first-tag>
'''

soup = BeautifulStoneSoup(xml_str)
print info_extract(soup)