硒(Python)-选择 [英] Selenium (Python) - SELECT

问题描述

现在，在收到错误消息之前，我的脚本转到页面并打开下拉列表"Vijesti"中的第二个对象.

Right now my script go to page and open the second object from the drop down list, "Vijesti", before I get the error message.

这是错误:

StaleElementReferenceException:消息:在缓存中找不到元素-自查找以来，页面可能已更改

StaleElementReferenceException: Message: Element not found in the cache - perhaps the page has changed since it was looked up

在Selenium网站上:

From Selenium site:

当对元素的引用现在陈旧"时抛出. 陈旧意味着元素不再出现在页面的DOM上. StaleElementReferenceException的可能原因包括但不限于:

Thrown when a reference to an element is now "stale". Stale means the element no longer appears on the DOM of the page. Possible causes of StaleElementReferenceException include, but not limited to:

• 您不再位于同一页面上，或者自找到元素以来该页面可能已刷新.
• 该元素可能已被删除，并已重新添加到屏幕上.例如正在重定位的元素.当值更新并重建节点时，通常会在JavaScript框架中发生这种情况.
• 元素可能位于iframe或其他刷新的上下文中.

• You are no longer on the same page, or the page may have refreshed since the element was located.
• The element may have been removed and re-added to the screen, since it was located. Such as an element being relocated. This can happen typically with a javascript framework when values are updated and the node is rebuilt.
• Element may have been inside an iframe or another context which was refreshed.

我要选择每个对象并打开它.

What I want to select each object, and open it.

这是网址中的SELECT部分​​:

This is the SELECT part from the url:

<select id="kategorija" name="kategorija">
<option value="0">Kategorija</option>
<option value="12">Vijesti</option>
<option value="8">Biznis</option>
<option value="5">Sport</option>
<option value="2">Magazin</option>
<option value="7">Lifestyle</option>
<option value="3">Scitech</option>
<option value="6">Auto</option> 
</select>

代码:

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import Select
import time

driver = webdriver.Firefox() 

driver.get("http://www.klix.ba/") 

assert "Klix" in driver.title 

elem = driver.find_element_by_name("q") 

elem.send_keys("test") 

elem.send_keys(Keys.RETURN)


select = Select(driver.find_element_by_name('kategorija'))

all_options = [o.get_attribute('value') for o in select.options]

for x in all_options:
    select.select_by_value(x)
    time.sleep(3)

这是我进行测试的 url .

推荐答案

从下拉列表中选择一项后，页面会自动刷新.

您需要在每个选择的选项上重新查找" select元素:

You need to "refind" the select element on each option select:

select = Select(driver.find_element_by_name('kategorija'))

for index in range(len(select.options)):
    select = Select(driver.find_element_by_name('kategorija'))
    select.select_by_index(index)

    # grab the results

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