使用 CSS 选择器从网页中提取数据 - Selenium Python

Question

我想从戴尔的网站上提取一些我对我的设备感兴趣的日期。我尝试使用下载网页，urllib但它受验证码保护，我现在无法绕过它。现在我使用Selenium打开浏览器，手动解决capthca，然后自动打开页面并提取日期。问题是 css 选择器返回了一些奇怪的元素而不是所需的输出

我的代码：

from selenium import webdriver

import time

driver = webdriver.Chrome()

def scrape(codes):

    dates = []

    for i in range(len(codes)):

        driver.get("https://www.dell.com/support/home/us/en/19/product-support/"

                   "servicetag/%s/warranty?ref=captchasuccess" % codes[i])

    # Solve captcha manually

        if i == 0:

            print("You now have 120\" seconds to solve the captcha")

            time.sleep(120)

            print("120\" Passed")

    # Extract data

        expdate = driver.find_element_by_css_selector("#printdivid > div > div.not-annotated.hover > table:nth-child(3) > tbody > tr > td:nth-child(3)")

        print(expdate)

    driver.close()

codes = ['1FMR762', '15FDBG2', '10V8YZ1']

scrape(codes)

预期输出：

June 22, 2018

October 15, 2017

April 19, 2017

给定输出：

<selenium.webdriver.remote.webelement.WebElement (session="d83af0f7a3a9c79307d2058f863a7ecb", element="0.21873872382745052-1")>

<selenium.webdriver.remote.webelement.WebElement (session="d83af0f7a3a9c79307d2058f863a7ecb", element="0.06836824093097027-1")>

<selenium.webdriver.remote.webelement.WebElement (session="d83af0f7a3a9c79307d2058f863a7ecb", element="0.6642161898702734-1")>