用美丽的汤来获取所有的HTML标签 [英] Get all HTML tags with Beautiful Soup

问题描述

我试图从美丽的汤中得到所有html标签的列表。

我发现所有，但我必须在我搜索之前知道标签的名称。

如果有像

  html = < div>东西< / div> 
< div>其他< / div> 
< div class ='magical'> hi there< / div> 
< p> ; ok< / p>
  

如何获取像

b
$ b

  list_of_tags = [< div>，< div>，< div class ='magical'>， < p>] 
  

我知道如何用正则表达式来做这件事，但我正在努力学习BS4

解决方案

您不必为 find_all（） - 在这种情况下， BeautifulSoup 会递归地找到树中的所有标签。示例：

 >>> from bs4 import BeautifulSoup 
>>> 
>>> html =< div>东西< / div> 
 ...< div>其他< / div> 
 ...< div class ='magical'> hi there< ; / div> 
 ...< p> ok< / p>
>>>汤= BeautifulSoup（html，html.parser）
>>> [tag.name for soup.find_all（）] 
 [u'div'，u'div'，u'div'，u'p'] 
>>> [div]> 

>中的[str（tag）for tag in soup.find_all（）]
['< div> something< / div>'，'< div> magical> hi there< / div>'，'< p> ok< / p>']


I am trying to get a list of all html tags from beautiful soup.

I see find all but I have to know the name of the tag before I search.

If there is text like

html = """<div>something</div>
<div>something else</div>
<div class='magical'>hi there</div>
<p>ok</p>"""

How would I get a list like

list_of_tags = ["<div>", "<div>", "<div class='magical'>", "<p>"]

I know how to do this with regex, but am trying to learn BS4

解决方案

You don't have to specify any arguments to find_all() - in this case, BeautifulSoup would find you every tag in the tree, recursively. Sample:

>>> from bs4 import BeautifulSoup
>>>
>>> html = """<div>something</div>
... <div>something else</div>
... <div class='magical'>hi there</div>
... <p>ok</p>"""
>>> soup = BeautifulSoup(html, "html.parser")
>>> [tag.name for tag in soup.find_all()]
[u'div', u'div', u'div', u'p']
>>> [str(tag) for tag in soup.find_all()]
['<div>something</div>', '<div>something else</div>', '<div class="magical">hi there</div>', '<p>ok</p>']

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