使用python的Google身份验证偶尔起作用

Question

我正在使用以下代码对会话进行身份验证。然后，我想使用经过身份验证的会话来请求页面。这似乎适用于某些Google帐户，但对于某些无效。有人有更好的建议吗？

import requests
from BeautifulSoup import BeautifulSoup


def get_google_auth_session(username, password):
    google_accounts_url = 'https://accounts.google.com'
    authentication_url = 'https://accounts.google.com/ServiceLoginAuth'
    session = requests.session()
    user_agent = \
        'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36'
    headers = {'User-Agent': user_agent}

    login_html = session.get(google_accounts_url)
    soup_login = BeautifulSoup(login_html.content, 'html.parser'
                               ).find('form').find_all('input')
    payload = {}
    for u in soup_login:
        if u.has_attr('value'):
            payload[u['name']] = u['value']

    payload['Email'] = username
    payload['Passwd'] = password
    auto = login_html.headers.get('X-Auto-Login')
    follow_up = unquote(unquote(auto)).split('continue=')[-1]
    payload['continue'] = follow_up
    session.post(authentication_url, data=payload, headers=headers)

    ##this is where I want to use
    ##session.get(url)


get_google_auth_session(username='', password='')