从带有 selenium 和 python 的 optgroup 中选择一个选项 [英] Selecting an option from an optgroup with selenium and python

问题描述

我想从这个 optgroup 中选择一个值，然后它应该会给我一个链接下拉列表.

<select id="q" multiple="" tabindex="-1" class="select2-hidden-accessible" aria-hidden="true"><选项></选项><option class="q-all-text" value="al:all">搜索所有文本</option><optgroup label="业务类型"><option value="bt:Buyer">Buyer</option><option value="bt:Farmer/Rancher">Farmer/Rancher</option><option value="bt:Farmers Market">Farmers Market</option><option value="bt:Fishery">Fishery</option><option value="bt:Food Bank">Food Bank</option></optgroup>

这是我目前的代码:

driver = webdriver.Chrome('/path/to/chromedriver')driver.get("https://foodmarketmaker.com/main/mmsearch")iframe = driver.find_element_by_tag_name("iframe")driver.switch_to.frame(iframe)select = Select(driver.find_element_by_class_name("select2-hidden-accessible"))select.select_by_value("bt:Farmer/Rancher")links = driver.find_elements_by_tag_name('a')打印(链接)对于链接中的链接:打印(link.get_attribute('href'))

我要么得到元素不存在的异常，要么当我通过索引访问时，由于 aria-hidden 属性为真，我得到一个 ElementNotVisibleException.有没有办法解决这个问题?

解决方案

select 不是您需要处理的节点，因为它不可见.

尝试以下代码以获得所需的输出:

from selenium import webdriver as web从 selenium.webdriver.support.ui 导入 WebDriverWait 作为等待从 selenium.webdriver.support 导入 expected_conditions 作为 ECfrom selenium.webdriver.common.by import Bydriver = web.Chrome('/path/to/chromedriver')driver.get("https://foodmarketmaker.com/main/mmsearch")iframe = driver.find_element_by_tag_name("iframe")driver.switch_to.frame(iframe)wait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, '//section[@id="search-right"]//input[@placeholder="开始输入搜索"]'))).点击()wait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, '//li[.="Bass"]'))).click()links = wait(driver, 10).until(EC.presence_of_all_elements_located((By.XPATH, '//section[@id="search-results"]//a[.///*[name()="svg"]]'))))对于链接中的链接:打印(link.get_attribute('href'))

附言您需要将 '//li[.="Bass"]' XPath 中 li 节点的文本值替换为所需选项

I would like to choose a value from this optgroup which should then give me a dropdown of links.

<div class="searchbar">
    <select id="q" multiple="" tabindex="-1" class="select2-hidden-accessible" aria-hidden="true">
    <option></option>
    <option class="q-all-text" value="al:all">Search all text</option>

    <optgroup label="Business Type">
        <option value="bt:Buyer">Buyer</option>
        <option value="bt:Farmer/Rancher">Farmer/Rancher</option>
        <option value="bt:Farmers Market">Farmers Market</option>
        <option value="bt:Fishery">Fishery</option>
        <option value="bt:Food Bank">Food Bank</option>
    </optgroup>

Here is my code so far:

driver = webdriver.Chrome('/path/to/chromedriver')
driver.get("https://foodmarketmaker.com/main/mmsearch")
iframe = driver.find_element_by_tag_name("iframe")
driver.switch_to.frame(iframe)

select  = Select(driver.find_element_by_class_name("select2-hidden- accessible"))
select.select_by_value("bt:Farmer/Rancher")
links = driver.find_elements_by_tag_name('a')
print(links)
for link in links:
    print(link.get_attribute('href'))

I either get an exception that the element does not exist, or when I access by index, i get an ElementNotVisibleException due to the aria-hidden attribute being true. Is there any way around this?

解决方案

select is not the node that you need to handle as it's not visible.

Try below code to get required output:

from selenium import webdriver as web
from selenium.webdriver.support.ui import WebDriverWait as wait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By


driver = web.Chrome('/path/to/chromedriver')
driver.get("https://foodmarketmaker.com/main/mmsearch")
iframe = driver.find_element_by_tag_name("iframe")
driver.switch_to.frame(iframe)

wait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, '//section[@id="search-right"]//input[@placeholder="start typing to search"]'))).click()
wait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, '//li[.="Bass"]'))).click()

links = wait(driver, 10).until(EC.presence_of_all_elements_located((By.XPATH, '//section[@id="search-results"]//a[.//*[name()="svg"]]')))

for link in links:
    print(link.get_attribute('href'))

P.S. You need to replace text value of li node in '//li[.="Bass"]' XPath with required option

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