精华内容，包括与BeautifulSoup 4

Question

你好标签时，我喜欢下面：

soup.find('div', id='id1') 

我得到这样的：

<div id="id1"> 
<p id="ptag"> hello this is "p" tag</p> 
<span id="spantag"> hello this is "p" tag</span> 
<div id="divtag"> hello this is "p" tag</div> 
<h1 id="htag"> hello this is "p" tag</h1> 
</div> 

在哪里，我只需要像这样：

<p id="ptag"> hello this is "p" tag</p> 
<span id="spantag"> hello this is "p" tag</span> 
<div id="divtag"> hello this is "p" tag</div> 
<h1 id="htag"> hello this is "p" tag</h1> 

有什么办法可以得到像上面这样的内容吗？我尝试使用.contents，但没有得到我需要的东西。

感谢

Answer 1

from bs4 import BeautifulSoup 

html = """<div id="id1"> 
<p id="ptag"> hello this is "p" tag</p> 
<span id="spantag"> hello this is "p" tag</span> 
<div id="divtag"> hello this is "p" tag</div> 
<h1 id="htag"> hello this is "p" tag</h1> 
</div>""" 

soup = BeautifulSoup(html, 'html.parser') 
el = soup.find('div', id='id1') 
print el.decode_contents(formatter="html") 

输出：

<p id="ptag"> hello this is "p" tag</p> 
<span id="spantag"> hello this is "p" tag</span> 
<div id="divtag"> hello this is "p" tag</div> 
<h1 id="htag"> hello this is "p" tag</h1> 

Answer 2

使用contents我得到了以下几点：

[u'\n', <p id="ptag"> hello this is "p" tag</p>, u'\n', <span id="spantag"> hello this is "p" tag</span>, u'\n', <div id="divtag"> hello this is "p" tag</div>, u'\n', <h1 id="htag"> hello this is "p" tag</h1>, u'\n'] 

通过迭代列表，你可以很容易地得到输出你想（跳过\n元素）。

Answer 3

我假设soup.find是变量名，然后：

soup.find = re.sub("<div>.*<\/div>", "", soup.find) 

可能工作。

Answer 4

有在BeautifulSoup一个特定的功能，将做的正是你所需要的 - unwrap()：

Tag.unwrap()是wrap()相反。它用标签内的任何内容替换标签。这是很好的剔除标记

工作例如：

from bs4 import BeautifulSoup 


data = """ 
<div id="id1"> 
<p id="ptag"> hello this is "p" tag</p> 
<span id="spantag"> hello this is "p" tag</span> 
<div id="divtag"> hello this is "p" tag</div> 
<h1 id="htag"> hello this is "p" tag</h1> 
</div> 
""" 
soup = BeautifulSoup(data, 'html.parser') 
soup.div.unwrap() 

print(soup) 

将打印：

<p id="ptag"> hello this is "p" tag</p> 
<span id="spantag"> hello this is "p" tag</span> 
<div id="divtag"> hello this is "p" tag</div> 
<h1 id="htag"> hello this is "p" tag</h1>