如何获得BeautifulSoup 4，尊重一个自闭的标签？ [英] How to get BeautifulSoup 4 to respect a self-closing tag?
问题描述
此问题是特定于 BeautifulSoup4 ，这使得它从previous不同的问题
<一个href=\"http://stackoverflow.com/questions/1567402/why-is-beautifulsoup-modifying-my-self-closing-elements\">Why是BeautifulSoup修改我自闭的元素呢？
由于 BeautifulStoneSoup 消失（在previous XML解析器），我怎么能得到 BS4 尊重一个新的自关闭标签？例如：
进口BS4
S ='''＆LT;富＆GT; ＆LT;扎了=3/＆GT; ＆LT; / foo的＆GT;'''
汤= bs4.BeautifulSoup（S，selfClosingTags = ['酒吧']）打印汤。prettify（）
不自行关闭栏标签，反而给人一种暗示。这是什么树生成器，BS4指的是，如何我自闭的标签？
/usr/local/lib/python2.7/dist-packages/bs4 / __ init__.py:112：UserWarning：BS4不尊重selfClosingTags参数的构造函数BeautifulSoup。树构建器是负责了解自闭的标签。
BS4不尊重selfClosingTags参数传递给
＆LT; HTML和GT;
＆LT;身体GT;
＆LT;富＆GT;
＆LT;扎了=3＆GT;
＆LT; /酒吧和GT;
＆LT; / foo的＆GT;
＆LT; /身体GT;
＆LT; / HTML＆GT;
为了解析您的XML传递XML作为第二个参数的构造函数BeautifulSoup。
汤= bs4.BeautifulSoup（S，'XML'）
您并不需要通过 selfClosingTags 了：
在[1]：进口BS4
在[2]：S ='''＆所述;富＆GT; ＆LT;扎了=3/＆GT; ＆LT; / foo的＆GT;'''
在[3]：汤= bs4.BeautifulSoup（S，'XML'）
[4]：打印汤prettify（）
＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT;富＆GT;
＆LT;扎了=3/＆GT;
＆LT; / foo的＆GT;
This question is specific to BeautifulSoup4, which makes it different from the previous questions:
Why is BeautifulSoup modifying my self-closing elements?
selfClosingTags in BeautifulSoup
Since BeautifulStoneSoup is gone (the previous xml parser), how can I get bs4 to respect a new self-closing tag? For example:
import bs4
S = '''<foo> <bar a="3"/> </foo>'''
soup = bs4.BeautifulSoup(S, selfClosingTags=['bar'])
print soup.prettify()
Does not self-close the bar tag, but gives a hint. What is this tree builder that bs4 is referring to and how to I self-close the tag?
/usr/local/lib/python2.7/dist-packages/bs4/__init__.py:112: UserWarning: BS4 does not respect the selfClosingTags argument to the BeautifulSoup constructor. The tree builder is responsible for understanding self-closing tags.
"BS4 does not respect the selfClosingTags argument to the "
<html>
<body>
<foo>
<bar a="3">
</bar>
</foo>
</body>
</html>
To parse XML you pass in "xml" as the second argument to the BeautifulSoup constructor.
soup = bs4.BeautifulSoup(S, 'xml')
You’ll need to have lxml installed.
You don't need to pass selfClosingTags anymore:
In [1]: import bs4
In [2]: S = '''<foo> <bar a="3"/> </foo>'''
In [3]: soup = bs4.BeautifulSoup(S, 'xml')
In [4]: print soup.prettify()
<?xml version="1.0" encoding="utf-8"?>
<foo>
<bar a="3"/>
</foo>
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