使用 Python-Selenium 自动登录 GMAIL

我正在尝试使用 Python 的 Selenium 包自动登录 GMail。但是，我无法完成任务并收到以下错误：

Traceback (most recent call last):
  File "C:\Users\Surojit\Desktop\Python\automaticpasswordFiller.py", line   21, in <module>
    passwordElem = browser.find_element_by_id('Passwd')
  File "C:\Users\Surojit\AppData\Local\Programs\Python\Python35-32\lib\site- packages\selenium\webdriver\remote\webdriver.py", line 266, in  find_element_by_id
    return self.find_element(by=By.ID, value=id_)
  File "C:\Users\Surojit\AppData\Local\Programs\Python\Python35-32\lib\site- packages\selenium\webdriver\remote\webdriver.py", line 744, in find_element
    {'using': by, 'value': value})['value']
  File "C:\Users\Surojit\AppData\Local\Programs\Python\Python35-32\lib\site-  packages\selenium\webdriver\remote\webdriver.py", line 233, in execute
    self.error_handler.check_response(response)
  File "C:\Users\Surojit\AppData\Local\Programs\Python\Python35-32\lib\site- packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: Unable to locate  element: {"method":"id","selector":"Passwd"}
Stacktrace:
    at FirefoxDriver.prototype.findElementInternal_   (file:///C:/Users/Surojit/AppData/Local/Temp/tmpceecsm46/extensions/fxdriver@goo glecode.com/components/driver-component.js:10770)
     at FirefoxDriver.prototype.findElement   (file:///C:/Users/Surojit/AppData/Local/Temp/tmpceecsm46/extensions/fxdriver@goo  glecode.com/components/driver-component.js:10779)
    at DelayedCommand.prototype.executeInternal_/h   (file:///C:/Users/Surojit/AppData/Local/Temp/tmpceecsm46/extensions/fxdriver@goo    glecode.com/components/command-processor.js:12661)
    at DelayedCommand.prototype.executeInternal_    (file:///C:/Users/Surojit/AppData/Local/Temp/tmpceecsm46/extensions/fxdriver@goo glecode.com/components/command-processor.js:12666)
    at DelayedCommand.prototype.execute/<   (file:///C:/Users/Surojit/AppData/Local/Temp/tmpceecsm46/extensions/[email protected] /cdn-cgi/l/email-protection/components/command-processor.js:12608) 

我写的简单代码是：

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
import time

browser = webdriver.Firefox()
browser.get('http://gmail.com')
action = webdriver.ActionChains(browser)
emailElem = browser.find_element_by_id('Email')
emailElem.send_keys("MyUserName")
browser.find_element_by_name('signIn').click()
#browser.get('https://accounts.google.com/ServiceLogin?         service=mail&continue=https://mail.google.com/mail/#password')
passwordElem = browser.find_element_by_id('Passwd')
passwordElem.send_keys("MyPassword")
browser.find_element_by_name('signIn').click()

另外，我尝试通过将代码与此处类似问题的答案进行比较来找出代码中的错误：使用 Python Selenium 自动连接我的 Gmail 帐户 https://stackoverflow.com/questions/33708821/auto-connect-on-my-gmail-account-with-python-selenium

有人可以引导我走上正确的道路并让我知道我在哪里犯了错误吗？

PS：这是我在 stackoverflow 上的第一篇文章。请原谅我在发布问题时犯的任何错误

您正在尝试寻找Passwd尚未加载到 dom 中的元素的 id。尝试添加一些延迟以便页面可以加载。

emailElem = browser.find_element_by_id('Email')
emailElem.send_keys('MyUserName')
nextButton = browser.find_element_by_id('next')
nextButton.click()
time.sleep(1)
passwordElem = browser.find_element_by_id('Passwd')
passwordElem.send_keys('MyPassword')
signinButton = browser.find_element_by_id('signIn')
signinButton.click()

推荐的方法是browser.implicitly_wait(num_of_seconds) see this http://www.obeythetestinggoat.com/how-to-get-selenium-to-wait-for-page-load-after-a-click.html