如何修复 AttributeError: 'NoneType' 对象没有属性 'click'

Question

How to address the error AttributeError: 'NoneType' object has no attribute 'click' ? Its failing in self.home.get_you_button().click() . It's working fine when I am not creating Page Object Class...it clicks on the You button without any error but by using POM it's failing. The url is https://huew.co/

Code trials:

from selenium.webdriver.support import expected_conditions
from selenium.webdriver.support.wait import WebDriverWait

class HomePage():

    def __init__(self,driver):
        self.driver = driver

    def wait_for_home_page_to_load(self):
        wait =WebDriverWait(self.driver,30)
        wait.until(expected_conditions.visibility_of(self.driver.find_element_by_tag_name('html')))

    def get_you_button(self):

        try:
            element = self.driver.find_element_by_xpath("//div[@class='desktop-public-header']/a[@ng-controller='UserNavigationInteractionCtrl'][6]")

        except:
            return None

Answer 1

This error message...

AttributeError: 'NoneType' object has no attribute 'click'

...implies that no element was returned by WebDriverWait so None was returned from the except block which have no attribute as 'click'.

As your usecase is to click on the element with text as You a couple of facts:

• You don't need to wait for home page to load with WebDriverWait seperately. So you can remove the method wait_for_home_page_to_load(self) .
• Instead induce once you invoke get() for the url https://huew.co/ induce WebDriverWait for the desired element ie element with text as You to be clickable .
• It will be better to catch the actual exception TimeoutException
• Not sure about your usecase but there is no point returning None rather print the relevant text and break .

• You can use the following solution:

   self.driver = driver try: return (WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//a[@class= 'desktop-menu-container ng-scope' and @href='/profile/']")))) print("YOU link found and returned") except TimeoutException: print("YOU link not found ... breaking out") break

• You have to add the following imports :

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