Such as the browser driven Chrome_driver, declared that he was WebDriver class, to use WebDriver class, the need to import the package to which it belongs
from selenium.webdriver.remote.webdriver import WebDriver from selenium.webdriver.remote.webelement import WebElement def __init__(self,Chrome_driver:WebDriver): self.driver =Chrome_driver def input(self,ele:WebElement,value): ele.clear() ele.send_keys(value)