我有一个带有一些自闭合标签的 html 文件，但 BeautifulSoup 不喜欢它们。
from bs4 import BeautifulSoup
html = '<head><meta content="text/html" http-equiv="Content-Type"><meta charset="utf-8"></head>'
doc = BeautifulSoup(html, 'html.parser')
print doc.prettify()
打印
<head>
<meta content="text/html" http-equiv="Content-Type">
<meta charset="utf-8"/>
</meta>
</head>
我是否必须手动检查每个标签是否自动关闭并进行适当修改，或者是否有更好的处理方法？
最佳答案
您可能已经知道，您可以指定 BeautifulSoup 将在内部使用的不同解析器。并且，如 BeautifulSoup docs 中所述:
There are also differences between HTML parsers. If you give Beautiful Soup a perfectly-formed HTML document, these differences won’t matter. One parser will be faster than another, but they’ll all give you a data structure that looks exactly like the original HTML document.
But if the document is not perfectly-formed, different parsers will give different results.
在这种特殊情况下，lxml 和 html5lib 都会生成两个单独的 meta 标记:
In [4]: doc = BeautifulSoup(html, 'lxml')
In [5]: print(doc.prettify())
<html>
<head>
<meta content="text/html" http-equiv="Content-Type"/>
<meta charset="utf-8"/>
</head>
</html>
In [6]: doc = BeautifulSoup(html, 'html5lib')
In [7]: print(doc.prettify())
<html>
<head>
<meta content="text/html" http-equiv="Content-Type"/>
<meta charset="utf-8"/>
</head>
<body>
</body>
</html>
关于python - BeautifulSoup - 处理自动关闭标签的正确方法，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33458356/