如何识别用户名和密码字段以使用Selenium和Python登录到USPS.com

根据您的问题以及使用用户名和密码登录的网址 https://reg.usps.com/login?app=MyUSPS，您需要诱使WebDriverWait使所需的元素可单击，然后可以使用以下解决方案：

• 代码块：

  from selenium import webdriver
  from selenium.webdriver.common.by import By
  from selenium.webdriver.support.ui import WebDriverWait
  from selenium.webdriver.support import expected_conditions as EC
  
  options = webdriver.ChromeOptions() 
  options.add_argument("start-maximized")
  options.add_argument('disable-infobars')
  driver=webdriver.Chrome(chrome_options=options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
  driver.get("https://reg.usps.com/login?app=MyUSPS")
  WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//input[@class='form-control' and @id='username']"))).send_keys("Ankit")
  driver.find_element_by_xpath("//input[@class='form-control' and @id='password']").send_keys("Ankit")
  driver.find_element_by_xpath("//button[@class='btn btn-primary btn-lg btn-block' and @id='btn-submit']").click()
  

• 浏览器快照：