seleniumpython行为WebDriverWait

我试图使用WebDriverWait让页面等待，直到它从登录页面转到用户面板页面

from features.browser import Browser
from features.locators import LoginPageLocators
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

class LoginForm(Browser):
    def log_in_as(self, username, password):
        username_field = self.driver.find_element(*LoginPageLocators.EMAIL_FIELD)
        password_field = self.driver.find_element(*LoginPageLocators.PASSWORD_FIELD)
        username_field.send_keys(username)
        password_field.send_keys(password)
        submit_btn = self.driver.find_element(*LoginPageLocators.LOGIN_BTN)
        submit_btn.click()

        try:
            element = WebDriverWait(self, 10).until(EC.presence_of_element_located((By.XPATH, '//*[@id="ssr-webnav"]/div/div[1]/nav[2]/div[2]')))
        finally:
            print("Log In Succesfull")

然后我一步一步地叫它

@step(u'I log in as registered user')
def step_impl(context):
    context.login_form.log_in_as("example@gmail.com", "password123")

在environment.py中，我通过

def before_all(context):
    context.browser = Browser()
    context.login_form = LoginForm()

登录按预期工作，但当我添加WebdriverWait时，它会抛出一个错误：

Traceback (most recent call last):
  File "\behave\model.py", line 1329, in run
    match.run(runner.context)
  File "\behave\matchers.py", line 98, in run
    self.func(context, *args, **kwargs)
  File "features\steps\steps.py", line 13, in step_impl
    context.login_form.log_in_as("example@gmail.com", "password123")
  File "\features\pages\login.py", line 27, in log_in_as
    EC.presence_of_element_located((By.XPATH, '//*[@id="ssr-webnav"]/div/div[1]/nav[2]/div[2]')))
  File "\webdriver\support\wait.py", line 71, in until
    value = method(self._driver)
  File "\webdriver\support\expected_conditions.py", line 63, in __call__
    return _find_element(driver, self.locator)
  File \webdriver\support\expected_conditions.py", line 397, in 
    _find_element
    return driver.find_element(*by)
  AttributeError: 'LoginForm' object has no attribute 'find_element'

你知道我遗漏了什么吗？ 感谢查看Selenium for Python，您似乎需要将

webdriver

对象传递给

WebDriverWait（…）

。您正在将

self

而不是

self.driver

传递到函数调用中

那么这个

                        vvvv
element = WebDriverWait(self, 10).until(EC.presence_of_element_located((By.XPATH, '//*[@id="ssr-webnav"]/div/div[1]/nav[2]/div[2]')))

应该是这样

element = WebDriverWait(self.driver, 10).until(EC.presence_of_element_located((By.XPATH, '//*[@id="ssr-webnav"]/div/div[1]/nav[2]/div[2]')))

从Selenium for Python来看，似乎需要将

webdriver

对象传递到

WebDriverWait（…）

。您正在将

self

而不是

self.driver

传递到函数调用中

那么这个

                        vvvv
element = WebDriverWait(self, 10).until(EC.presence_of_element_located((By.XPATH, '//*[@id="ssr-webnav"]/div/div[1]/nav[2]/div[2]')))

应该是这样

element = WebDriverWait(self.driver, 10).until(EC.presence_of_element_located((By.XPATH, '//*[@id="ssr-webnav"]/div/div[1]/nav[2]/div[2]')))

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