如何使用Splinter获取question
的第一部分,下划线和最后部分的文本并将其存储到变量中?
请参阅底部的HTML。我想让以下变量具有以下值:
first_part = "Jingle bells, jingle bells, jingle all the"
second_part = "_______"
third_part = "! Oh what fun it is to ride in one-horse open sleigh!"
我去了here,使用了XPATHs
//*[@id="question_container"]/div[1]/span/text()[1] #this is first_part
//*[@id="question_container"]/div[1]/span/span #this is second_part
//*[@id="question_container"]/div[1]/span/text()[2] #this is third_part
并将它们应用于以下HTML。他们在测试中返回了所需的值,但对于我的程序,Splinter似乎拒绝了它们:
first_part = browser.find_by_xpath(xpath = '//*[@id="question_container"]/div[1]/span/text()[1]').text
second_part = browser.find_by_xpath(xpath = '//*[@id="question_container"]/div[1]/span/span').text
third_part = browser.find_by_xpath(xpath = '//*[@id="question_container"]/div[1]/span/text()[2]').text
print first_part
print second_part
print third_part
-------------- OUTPUT -------------
[]
[]
[]
我做错了什么,为什么这是错的,我应该如何更改我的代码?
使用Splinter的browser.html
功能检索引用的HTML(稍微编辑为“Jingle Bells'以更好地传达问题”):
<div id="question_container" style="display: block;">
<div class="question_wrap">
<span class="question">Jingle bells, jingle bells, jingle all the
<span class="underline" style="display: none;">_______</span>
<input type="text" name="vocab_answer" class="answer" id="vocab_answer"></input>
! Oh what fun it is to ride in one-horse open sleigh!</span>
</div></div>
答案 0 :(得分:1)
传递给xpath
方法的find_by_xpath()
必须指向/结果为元素,而不是文本节点。
一种选择是找到外span
,得到它html
并将其提供给lxml.html
:
from lxml.html import fromstring
element = browser.find_by_xpath(xpath='//div[@id="question_container"]//span[@class="question"]')
root = fromstring(element.html)
first_part = root.xpath('./text()[1]')[0]
second_part = root.xpath('./span/text()')[0]
third_part = root.xpath('./text()[last()]')[0]
print first_part, second_part, third_part
打印:
Jingle bells, jingle bells, jingle all the
_______
! Oh what fun it is to ride in one-horse open sleigh!