python-查找包含字符串的元素的xpath [英] python - find xpath of element containing string

问题描述

我构建了一个小脚本，该脚本应该在页面中找到一些特定的字符串并返回包含该字符串的元素的xpath. 目的是使用此xpath查找具有相同上下文的字符串.

I build a small script that supposed to find some specific string in a page and return the xpath of the element containing this string. The purpose is to use this xpath for finding string with same context.

我正在使用以下代码:

import requests
from lxml import html
page = requests.get("http://www.w3schools.com/xpath/")
tree = html.fromstring(page.text)
result = tree.xpath('//*[. = "XML"]')

result[0]返回<Element b at 0x7f034a08e940>，但我仍然不知道如何找到该元素的XPath.

result[0] returns <Element b at 0x7f034a08e940> and I can't figure out how to find this element's XPath anyway .

我想要的字符串是:

/html/body/div[4]/div/div[2]/div[2]/div[1]/div/ul/li[2]

推荐答案

您可以使用

You can use getpath() to get xpath from element, for example :

import requests
from lxml import html

page = requests.get("http://www.w3schools.com/xpath/")
root = html.fromstring(page.text)
tree = root.getroottree()
result = root.xpath('//*[. = "XML"]')
for r in result:
    print(tree.getpath(r))

输出:

/html/body/div[3]/div/ul/li[10]
/html/body/div[3]/div/ul/li[10]/a
/html/body/div[4]/div/div[2]/div[2]/div[1]/div/ul/li[2]
/html/body/div[5]/div/div[6]/h3
/html/body/div[6]/div/div[4]/h3
/html/body/div[7]/div/div[4]/h3

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