使用lxml/ElementTree获取非连续文本 [英] Getting non-contiguous text with lxml / ElementTree

问题描述

假设我有这种HTML，我需要使用lxml/ElementTree从中选择"text2":

Suppose I have this sort of HTML from which I need to select "text2" using lxml / ElementTree:

<div>text1<span>childtext1</span>text2<span>childtext2</span>text3</div>

如果我已经将div元素作为mydiv，则mydiv.text仅返回"text1".

If I already have the div element as mydiv, then mydiv.text returns just "text1".

使用itertext()充其量似乎是有问题的或麻烦的，因为它将整个树都遍历了div.

Using itertext() seems problematic or cumbersome at best since it walks the entire tree under the div.

是否有任何简单/优雅的方法从元素中提取非第一个文本块?

Is there any simple/elegant way to extract a non-first text chunk from an element?

推荐答案

lxml.etree提供了完整的XPath支持，使您可以处理文本项:

Well, lxml.etree provides full XPath support, which allows you to address the text items:

>>> import lxml.etree
>>> fragment = '<div>text1<span>childtext1</span>text2<span>childtext2</span>text3</div>'
>>> div = lxml.etree.fromstring(fragment)
>>> div.xpath('./text()')
['text1', 'text2', 'text3']

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