如何在 python 上获取 selenium Web 驱动程序以在下一页的 css 选择器上查找元素？

Question

我正在尝试让 selenium 使用 CSS 选择器抓取 wiki 页面的第一段。

当我运行这段代码时，它似乎只从原始网页中选择了一些

https://en.wikipedia.org

而不是我要搜索的内容，在本例中为“猫”。

对此的任何帮助都会很棒！

browser = webdriver.Firefox(executable_path='D:\Import Files that I also want backed up\Jupyter Notebooks\Python Projects\Selenium\driverss\geckodriver.exe')
browser.get('https://en.wikipedia.org')

search_elem = browser.find_element_by_css_selector('#searchInput')

search_elem.send_keys('cats')
search_elem.submit()


results_elem = browser.find_element_by_css_selector('p')

print(results_elem.text)

output:

Adventure Time is an American fantasy animated television series created .....

Answer 1

从 wiki 页面获取第一段文本。引入 WebDriverWait() 和 visibility_of_element_located() 并跟随 css 选择器。

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

browser = webdriver.Firefox(executable_path='D:\Import Files that I also want backed up\Jupyter Notebooks\Python Projects\Selenium\driverss\geckodriver.exe')
browser.get('https://en.wikipedia.org')
search_elem = browser.find_element_by_css_selector('#searchInput')
search_elem.send_keys('cats')
search_elem.submit()
results_elem=WebDriverWait(browser,10).until(EC.visibility_of_element_located((By.CSS_SELECTOR,"div.mw-parser-output p:nth-of-type(3)")))
print(results_elem.text)