如何使用 BeautifulSoup 删除嵌套标签中的内容? [英] How to remove content in nested tags with BeautifulSoup?

问题描述

如何使用 BeautifulSoup 删除嵌套标签中的内容?这些帖子显示反向检索嵌套标签中的内容:How使用 BeautifulSoup 和 BeautifulSoup:如何从包含一些嵌套

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列表中提取所有
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  我试过 .text 但它只删除标签

  <预><代码>>>>从 bs4 导入 BeautifulSoup 作为 bs>>>html = "<foo>某事<bar>等等</bar>某事</foo>">>>bs(html).find_all('foo')[0]<foo>东西<bar>等等等等</bar>别的东西>>>bs(html).find_all('foo')[0].text你'某事某事等等等等'

  所需的输出:

  <块引用>

  别的东西

  解决方案

  您可以检查孩子的 bs4.element.NavigableString :

  from bs4 import BeautifulSoup as bs进口BS4html = "<foo>某事<bar>等等</bar>某事<bar2>GONE!</bar2> else</foo>"def get_only_text(elem):对于 elem.children 中的项目:if isinstance(item,bs4.element.NavigableString):产量项目打印 ''.join(get_only_text(bs(html).find_all('foo')[0]))

  输出；

  东西别的东西

  How to remove content in nested tags with BeautifulSoup? These posts showed the reverse to retrieve the content in nested tags: How to get contents of nested tag using BeautifulSoup, and BeautifulSoup: How do I extract all the <li>s from a list of <ul>s that contains some nested <ul>s?

  I have tried .text but it only removes the tags

  >>> from bs4 import BeautifulSoup as bs
  >>> html = "<foo>Something something <bar> blah blah</bar> something</foo>"
  >>> bs(html).find_all('foo')[0]
  <foo>Something something <bar> blah blah</bar> something else</foo>
  >>> bs(html).find_all('foo')[0].text
  u'Something something  blah blah something else'
  

  Desired output:

  Something something something else

  解决方案

  You can check for bs4.element.NavigableString on children:

  from bs4 import BeautifulSoup as bs
  import bs4
  html = "<foo>Something something <bar> blah blah</bar> something <bar2>GONE!</bar2> else</foo>"
  def get_only_text(elem):
      for item in elem.children:
          if isinstance(item,bs4.element.NavigableString):
              yield item
  
  print ''.join(get_only_text(bs(html).find_all('foo')[0]))
  

  Output;

  Something something  something  else
  

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