如果能走对方登录接口最方便，如果不行可以试试下面方法：
以登录清博大数据举例，登录后需要把cookie存本地，每次跑selenium时候就用谷歌跑：

#清博账号登录以及保存cookie
class Qingbo():
    url = 'http://www.gsdata.cn/member/login'

    def __init__(self):
        self.data_path = cookie_path
        if not os.path.exists('cookie'):
            os.makedirs(self.data_path)
        cap = webdriver.DesiredCapabilities.PHANTOMJS
        cap["phantomjs.page.settings.resourceTimeout"] = 1000

        # self.driver = webdriver.PhantomJS(desired_capabilities=cap)
        self.driver = webdriver.Chrome()
        self.driver.set_page_load_timeout(30)

    def __del__(self):
        self.driver.quit()

    def save_cookie_to_file(self):
        cookies = self.driver.get_cookies()
        # print cookies
        with codecs.open(cookie_path, mode='w+', encoding='utf-8') as f:
            for cookie in cookies:
                line = json.dumps(cookie, ensure_ascii=False) + '\n'
                f.write(line)

    def retry_get(self, url):
        for retry in range(3):
            try:
                self.driver.get(url)
                break
            except TimeoutException:
                self.driver.execute_script('window.stop()')


    def login_in(self):
        # try:
            self.retry_get(self.url)
            is_code = self.driver.find_element_by_xpath('//*[@id="wxLogin"]/p')
            print(is_code.text)
            if u'微信扫一扫' in is_code.text:
                user_log_button = self.driver.find_element_by_xpath('/html//div[contains(@class,"login-box")]/div[contains(@class,"login-body")]/a[@class="login-type current"]')
                print(user_log_button)
                user_log_button.click()
            uin_input = self.driver.find_element_by_name('username')
            uin_input.clear()
            uin_input.send_keys(QINGBO_USERNAME)
            pwd_input = self.driver.find_element_by_name("password")
            pwd_input.clear()
            pwd_input.send_keys(QINGBO_PASSWORD)
            pwd_input.send_keys(Keys.ENTER)
            self.save_cookie_to_file()
            self.__del__()