WebDriverWait太强大

1 implicitly包打天下

有了implicitly之后，基本上不再关注网速之类的影响。

self.driver.implicitly_wait(511)

2 Linkedin无法登录返回值很乱，怎么破？

一会儿是拒绝，一会儿是验证码，一会儿是验证图形，一会儿又是直接进public profile。一个字：太乱。login validation逻辑不太好写。

请WebDriverWait出场。

Use the WebDriverWait with a custom condition and a loop. While waiting for the element to be located, periodically send a message to the user.

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

class LoginClass:
    def click_login(self):
        try:
            element = WebDriverWait(self.driver, 180, poll_frequency=1, ignored_exceptions=(Exception,)).until(
                self.custom_expected_condition((By.XPATH, "//*[@id='global-nav']/div/nav/ul/li[3]/a")))
            
            # If the element is located, proceed to working_screen
            element.click()
            self.working_screen()

        except Exception as e:
            print(f"Element not found: {e}")
            # Handle the exception as needed (e.g., log, take alternative action, etc.)

    def custom_expected_condition(self, locator):
        def custom_condition(driver):
            try:
                element = EC.presence_of_element_located(locator)(driver)
                if element:
                    return element
            except Exception as e:
                # Handle the exception or send a message to the user
                print(f"Waiting for element: {e}")
                self.send_user_message("Still waiting for the element...")
                return False

        return custom_condition

    def send_user_message(self, message):
        # Implement how to send a message to the user (e.g., print, display in UI, etc.)
        print(message)

    def working_screen(self):
        # Your implementation for the working screen
        print("Working screen logic...")

The custom_expected_condition method returns a custom condition function that waits for the presence of the element while periodically sending a message to the user. The poll_frequency parameter sets the interval between checks, and the ignored_exceptions parameter allows the WebDriverWait to ignore specific exceptions during the wait.

等。告诉用户在等。直到进入。