python - Selenium (Python)-选择

Question

现在，在我收到错误消息之前，我的脚本转到页面并从下拉列表“Vijesti”中打开第二个对象。

这是错误:

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

来自 Selenium 网站:

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:

• 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。

这是 URL 中的 SELECT 部分:

<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 url我在哪里做我的测试。

Answer 1

当从下拉列表中选择一个项目时，页面会自行刷新。

您需要在每个选项选择上“重新查找”select 元素:

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