如何使用BeautifulSoup4删除XML声明 [英] How Do I Remove An XML Declaration Using BeautifulSoup4
问题描述
我有一个结构如下的XHTML文件:
I have an XHTML file that is structured like this:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
...
</head>
<body>
...
</body>
<html>
我正在使用BeautifulSoup，我想从文档中删除XML声明，所以我的样子是这样的:
I'm using BeautifulSoup and I want to remove the XML declaration from the document, so what I have looks like this:
<!DOCTYPE html>
<html lang="en">
<head>
...
</head>
<body>
...
</body>
<html>
我找不到找到将其删除的XML声明的方法.据我所知，它似乎不是Doctype，Declaration，Tag或NavigableString.有什么方法可以找到我要提取的吗?
I can't find a way to get at the XML declaration to remove it. It doesn't appear to be a Doctype, Declaration, Tag, or NavigableString as far as I can tell. Is there a way I can find this to extract it?
作为一个工作示例，我可以使用如下代码删除Doctype(假设文档文本为变量"html"):
As a working example, I can remove the Doctype with code like this (assuming the document text is the variable "html"):
soup = BeautifulSoup(html)
[item.extract() for item in soup.contents if isinstance(item, Doctype)]
推荐答案
您可以使用以下方法:
import bs4
soup = bs4.BeautifulSoup(html, 'html.parser')
for e in soup:
if isinstance(e, bs4.element.ProcessingInstruction):
e.extract()
break
print(soup)
对于您的示例，这将为您提供更新的HTML，如下所示:
For your sample, this would give you the updated HTML as:
<!DOCTYPE html>
<html lang="en">
<head>
...
</head>
<body>
...
</body>
<html></html></html>
这篇关于如何使用BeautifulSoup4删除XML声明的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
