Selenium Python无法找到_element_by_link_text

Question

我正在尝试将Selenium与BeautifulSoup结合使用。 更具体地说，我尝试从此处的下拉菜单中单击链接NCAA Division I （最初显示为Top 25 ）。

链接的HTML标签如下所示：

<li><a href="#" data-type="conference" data-week="null-null-null" data-group="50">NCAA Division I</a></li> 

在我看来，这似乎很简单： driver.find_element_by_link_text('NCAA Division I').click()

这是因为href="#"还是因为<a>标签嵌入在<li>标签中？

这是发生了什么：

(Pdb) driver.find_element_by_link_text('NCAA Division I').click()
*** NoSuchElementException: Message: no such element: Unable to locate element: {"method":"link text","selector":"NCAA Division I"}
  (Session info: chrome=54.0.2840.100)
  (Driver info: chromedriver=2.25.426924 (649f9b868f6783ec9de71c123212b908bf3b232e),platform=Linux 4.4.0-45-generic x86_64)

完整代码：

import numpy as np
import requests
from bs4 import BeautifulSoup
import re
import datetime
import os
from selenium import webdriver

scores_link = "http://www.espn.com/mens-college-basketball/scoreboard/_/date/20161122"
r = requests.get(scores_link)

driver = webdriver.Chrome()
driver.get(scores_link)
driver.find_element_by_link_text('NCAA Division I').click()
soup = BeautifulSoup(driver.page_source)

Answer 1

由于“ NCAA Division I”只会在鼠标悬停之后出现，因此我们必须使用硒中的ActionChains（ http://selenium-python.readthedocs.io/api.html#module-selenium.webdriver.common.action_chains ）

试试这个代码，它将起作用：

from selenium import webdriver
from selenium.webdriver.common.action_chains import ActionChains

driver = webdriver.Chrome()
driver.maximize_window()
driver.get('http://www.espn.com/mens-college-basketball/scoreboard/_/date/20161122')

el2=driver.find_element_by_xpath("//header[@class='automated-header']//button[.='Top 25']")
action = ActionChains(driver)
action.move_to_element(el2).click().perform()

driver.find_element_by_link_text('NCAA Division I').click()