selenium中的鼠标悬停操作

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

driver = webdriver.Chrome()
driver.get('https://www.baidu.com')
driver.maximize_window()
sleep(2)
#鼠标悬停
el=driver.find_element_by_xpath("//*[@id='s-usersetting-top']")
ActionChains(driver).move_to_element(el).perform()
sleep(2)
driver.find_element_by_xpath("//*[@id='s-user-setting-menu']/div/a[1]").click()

sleep(5)
driver.quit()