python - 面临从建议下拉列表中选择第二项的问题

Question

我用 selenium 在 python 中编写了一个脚本，以使用反向查找从谷歌地图中抓取城市和 zip 。到目前为止效果很好。我无法满足的唯一要求是:在搜索框中输入地址后，有时很少有建议像下拉菜单一样出现以供选择。它默认选择第一个。如果我想从建议中选择第二个，我会被卡住。

这是我正在尝试的脚本:

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

search_street = ['10123 HARDISON','1006 ELEANOR ST']

def find_address(driver, wait):
    for item in range(0,2):
        driver.get("https://maps.google.com/maps?q=Houston")
        wait = WebDriverWait(driver, 10)
        input_val = wait.until(EC.presence_of_element_located((By.NAME, "q")))
        input_val.clear()
        input_val.send_keys(search_street[item])
        driver.find_element_by_id('searchbox-searchbutton').click()

        # wait.until(EC.presence_of_element_located((By.XPATH, "//div[@id='sbse6']")))
        # driver.find_elements_by_xpath("//div[@id='sbse6']")[2].click()

        wait.until(EC.presence_of_element_located((By.XPATH, "//div[@class='section-hero-header-description']")))  
        element = driver.find_element_by_xpath("//div[@class='section-hero-header-description']")
        name = driver.execute_script("return arguments[0].childNodes[3].textContent", element).strip()
        print(name)

if __name__ == '__main__':
    driver = webdriver.Chrome()
    wait = WebDriverWait(driver, 10)
    try:
        find_address(driver, wait)
    finally:
        driver.quit()

建议下拉的 HTML 元素:

<div class="sbdd_b" style=""><div class="suggestions"><ul class="sbsb_b" role="listbox"><li role="presentation" class="sbsb_c " dir="ltr" style="text-align: left;"><div role="option" id="sbse5"><div class="sbqs_a"></div><div class="sbqs_c"><div jstcache="746" class="suggest" jsan="7.suggest"><div jstcache="747" jsinstance="*0" class="suggest-text-layout"><div jstcache="748" class="suggest-left-cell"><div role="presentation" jstcache="749" class="suggest-icon-container maps-sprite-suggest-place-pin" jsan="7.suggest-icon-container,7.maps-sprite-suggest-place-pin,0.role"></div><img role="presentation" jstcache="750" class="suggest-activity" style="display:none"><span jstcache="751" style="display:none"><span jstcache="752" class="suggest-query" jsan="7.suggest-query"></span> nearby</span><span jstcache="753" class="suggest-query" jsan="7.suggest-query,t-fmS2vATOQZY"><span jstcache="764" jsinstance="0" class=" suggest-bold" jsan="7.suggest-bold">10123 Valley Park Dr</span><span jstcache="764" jsinstance="*1" class="">ive</span></span> <span jstcache="754"><span jstcache="764" jsinstance="*0">Houston, TX</span></span></div><div class="suggest-right-cell"><button jstcache="755" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">set location</button><button jstcache="756" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">edit</button><span jstcache="757" style="display:none"><div class="suggest-ad-creative-annotation">Ad</div><span jstcache="758"></span></span></div></div></div></div></div></li><li role="presentation" class="sbsb_c " dir="ltr" style="text-align: left;"><div role="option" id="sbse6"><div class="sbqs_a"></div><div class="sbqs_c"><div jstcache="746" class="suggest" jsan="7.suggest"><div jstcache="747" jsinstance="*0" class="suggest-text-layout"><div jstcache="748" class="suggest-left-cell"><div role="presentation" jstcache="749" class="suggest-icon-container maps-sprite-suggest-place-pin" jsan="7.suggest-icon-container,7.maps-sprite-suggest-place-pin,0.role"></div><img role="presentation" jstcache="750" class="suggest-activity" style="display:none"><span jstcache="751" style="display:none"><span jstcache="752" class="suggest-query" jsan="7.suggest-query"></span> nearby</span><span jstcache="753" class="suggest-query" jsan="7.suggest-query,t-fmS2vATOQZY"><span jstcache="764" jsinstance="0" class=" suggest-bold" jsan="7.suggest-bold">10123 Valley Park Dr</span><span jstcache="764" jsinstance="*1" class="">ive</span></span> <span jstcache="754"><span jstcache="764" jsinstance="*0">Garland, TX</span></span></div><div class="suggest-right-cell"><button jstcache="755" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">set location</button><button jstcache="756" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">edit</button><span jstcache="757" style="display:none"><div class="suggest-ad-creative-annotation">Ad</div><span jstcache="758"></span></span></div></div></div></div></div></li><li role="presentation" class="sbsb_c " dir="ltr" style="text-align: left;"><div role="option" id="sbse7"><div class="sbqs_a"></div><div class="sbqs_c"><div jstcache="746" class="suggest" jsan="7.suggest"><div jstcache="747" jsinstance="*0" class="suggest-text-layout"><div jstcache="748" class="suggest-left-cell"><div role="presentation" jstcache="749" class="suggest-icon-container maps-sprite-suggest-place-pin" jsan="7.suggest-icon-container,7.maps-sprite-suggest-place-pin,0.role"></div><img role="presentation" jstcache="750" class="suggest-activity" style="display:none"><span jstcache="751" style="display:none"><span jstcache="752" class="suggest-query" jsan="7.suggest-query"></span> nearby</span><span jstcache="753" class="suggest-query" jsan="7.suggest-query,t-fmS2vATOQZY"><span jstcache="764" jsinstance="0" class=" suggest-bold" jsan="7.suggest-bold">10123 Valley Park Dr</span><span jstcache="764" jsinstance="*1" class="">ive</span></span> <span jstcache="754"><span jstcache="764" jsinstance="*0">Garden Ridge, TX</span></span></div><div class="suggest-right-cell"><button jstcache="755" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">set location</button><button jstcache="756" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">edit</button><span jstcache="757" style="display:none"><div class="suggest-ad-creative-annotation">Ad</div><span jstcache="758"></span></span></div></div></div></div></div></li><li role="presentation" class="sbsb_c " dir="ltr" style="text-align: left;"><div role="option" id="sbse8"><div class="sbqs_a"></div><div class="sbqs_c"><div jstcache="746" class="suggest" jsan="7.suggest"><div jstcache="747" jsinstance="*0" class="suggest-text-layout"><div jstcache="748" class="suggest-left-cell"><div role="presentation" jstcache="749" class="suggest-icon-container maps-sprite-suggest-place-pin" jsan="7.suggest-icon-container,7.maps-sprite-suggest-place-pin,0.role"></div><img role="presentation" jstcache="750" class="suggest-activity" style="display:none"><span jstcache="751" style="display:none"><span jstcache="752" class="suggest-query" jsan="7.suggest-query"></span> nearby</span><span jstcache="753" class="suggest-query" jsan="7.suggest-query,t-fmS2vATOQZY"><span jstcache="764" jsinstance="0" class=" suggest-bold" jsan="7.suggest-bold">10123 Valley Park Dr</span><span jstcache="764" jsinstance="*1" class="">ive</span></span> <span jstcache="754"><span jstcache="764" jsinstance="*0">San Antonio, TX</span></span></div><div class="suggest-right-cell"><button jstcache="755" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">set location</button><button jstcache="756" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">edit</button><span jstcache="757" style="display:none"><div class="suggest-ad-creative-annotation">Ad</div><span jstcache="758"></span></span></div></div></div></div></div></li><li role="presentation" class="sbsb_c " dir="ltr" style="text-align: left;"><div role="option" id="sbse9"><div class="sbqs_a"></div><div class="sbqs_c"><div jstcache="746" class="suggest" jsan="7.suggest"><div jstcache="747" jsinstance="*0" class="suggest-text-layout"><div jstcache="748" class="suggest-left-cell"><div role="presentation" jstcache="749" class="suggest-icon-container maps-sprite-suggest-place-pin" jsan="7.suggest-icon-container,7.maps-sprite-suggest-place-pin,0.role"></div><img role="presentation" jstcache="750" class="suggest-activity" style="display:none"><span jstcache="751" style="display:none"><span jstcache="752" class="suggest-query" jsan="7.suggest-query"></span> nearby</span><span jstcache="753" class="suggest-query" jsan="7.suggest-query,t-fmS2vATOQZY"><span jstcache="764" jsinstance="0" class=" suggest-bold" jsan="7.suggest-bold">10123 Valley Park Dr</span><span jstcache="764" jsinstance="*1" class="">ive</span></span> <span jstcache="754"><span jstcache="764" jsinstance="*0">Temple, TX</span></span></div><div class="suggest-right-cell"><button jstcache="755" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">set location</button><button jstcache="756" jsaction="omnibox.editAlias" class="blue-button-text suggest-edit-link" style="display:none">edit</button><span jstcache="757" style="display:none"><div class="suggest-ad-creative-annotation">Ad</div><span jstcache="758"></span></span></div></div></div></div></div></li></ul></div></div>

我说的建议下拉菜单是这样的: image_link

顺便说一句，我试图从建议下拉列表中选择第二个选项的 xpath 也在我的脚本中给出，此时它是灰色的。

Answer 1

我很可能不能用 xpath 来做，因为我发现页面变化非常快，元素也很快变得陈旧。但是我可以用类来做到这一点:

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from time import sleep

search_street = ['10123 HARDISON','1006 ELEANOR ST']

def find_address(driver, wait):
    for item in range(0,2):
        driver.get("https://maps.google.com/maps?q=Houston")
        wait = WebDriverWait(driver, 10)
        input_val = wait.until(EC.presence_of_element_located((By.NAME, "q")))
        input_val.clear()
        input_val.send_keys(search_street[item])

        wait.until(EC.presence_of_element_located((By.CLASS_NAME, "suggest")))
        sleep(5) # To prevent stale element reference as the text changes.
        for element in driver.find_elements_by_class_name("suggest"):
            print (element.text)

if __name__ == '__main__':
    driver = webdriver.Chrome()
    wait = WebDriverWait(driver, 10)
    try:
        find_address(driver, wait)
    finally:
        driver.quit()

输出:

10123 Hardison Lane Houston, TX
10123 Hardison Lane Abilene, TX
10123 Hardison Road Woodburn, KY
10123 Hardison Road Charlotte, NC
10123 Hardison Road Columbia, TN
1006 Eleanor Street College Station, TX
1006 Eleanor Street Houston, TX
1006 Eleanor Street Victoria, TX
1006 Eleanor Street La Marque, TX
1006 Eleanor Street Brenham, TX

您可以像这样在所选元素上执行点击事件:

driver.find_elements_by_class_name("suggest")[2].click()