为什么出现错误 AttributeError: 'WebDriver'

Question

获取行 self.driver.executes_script 错误self.driver.executes_script("arguments[0].click();", new_notification) AttributeError: 'WebDriver' object has no attribute 'executes_script' None但它们是一个类名import unittestfrom selenium import webdriverfrom selenium.webdriver.common.keys import Keysimport HtmlTestRunnerimport timeclass Environment(unittest.TestCase):    def setUp(self):        self.driver = webdriver.Chrome(executable_path="F:\\automation\\chromedriver.exe")    # login test case    def test_first_page_login(self):        driver = self.driver        driver.maximize_window()        driver.get("http://localhost/dashboard/user/login")        self.driver.find_element_by_id('uemail').send_keys('[e-mail]')        self.driver.find_element_by_id('upwd').send_keys('1234567890')        self.driver.find_element_by_id('upwd').send_keys(Keys.RETURN)    # login page going    def test_going_notification_page(self):        self.test_first_page_login()        time.sleep(5)        going_noti_page = self.driver.find_element_by_class_name('caret')        print(self.driver.execute_script("arguments[0].click();", going_noti_page))        new_notification = self.driver.find_element_by_class_name('fa-paper-plane')        self.driver.executes_script("arguments[0].click();", new_notification)        time.sleep(5)    def tearDown(self):        self.driver.quit()if __name__ == "__main__":        unittest.main(testRunner=HtmlTestRunner.HTMLTestRunner(output='F:\\automation\\reports'))