如何使用lxml将这些html标签打印为文本？
[英]How can I print these html tags as text with lxml?
问题描述
So I have a webpage that has a large list of links. 
所以我有一个网页，其中包含大量链接。 They are all contained inside <li> tags. 它们都包含在<li>标记内。
The <li> tags are inside a <ol> tag inside a <div> and so on like this: <li>标记位于<div>内的<ol>标记内，依此类推：
html --> body --> table --> tbody --> tr --> td --> table --> tbody --> tr --> td --> div --> ol
And then the <li> tags are inside the <ol> . 然后<li>标记位于<ol> 。
How can I use lxml in Python to print the <li> tags' html as text? 如何在Python中使用lxml将<li>标签的html打印为文本？
2 个解决方案
解决方案1
1 已采纳 2014-03-25 20:43:11
Using BeautifulSoup (which builds on the lxml library) 使用BeautifulSoup （基于lxml库构建）
import bs4
text = """<html>
<body>
<table>
<tbody>
<tr>
<td>
<table>
<tbody>
<tr>
<td>
<div>
<ol>
<li>
<a href="test.html" title="test title">Link Text</a>
<a href="test2.html" title="test title 2">Link2 Text</a>
</li>
</ol>
</div>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</body>
</html>"""
soup = bs4.BeautifulSoup(text)
listitems = soup.select("table > tbody > tr > td > table > tbody > tr > td > div > ol > li")
tags = [tag for tag in listitems[0] if isinstance(tag,bs4.element.Tag)]
for tag in tags:
print(tag)
# OUTPUT
# <a href="test.html" title="test title">Link Text</a>
# <a href="test2.html" title="test title 2">Link2 Text</a>
解决方案2
1 2014-03-25 20:43:46
The solution below should do it in lxml, however, beautiful soup will probably be a much better solution and handle malformed HTML much better. 下面的解决方案应该在lxml中完成，但是，漂亮的汤可能是一个更好的解决方案，并且可以更好地处理格式错误的HTML。
import lxml.etree as etree
tree = etree.parse(open("test.html"))
for li in tree.iterfind(".//td/div/ol/li"):
print etree.tostring(li[0])
I'll edit with a beautifulsoup answer in a minute. 一分钟后，我将以Beautifulsoup答案进行编辑。 EDIT : See Adam's solution. 编辑 ：见亚当的解决方案。
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