from selenium import webdriver
browser=webdriver.Firefox()
browser.get('https://vk.com')
a=browser.find_element_by_id('index_email')
a.send_keys('email')
c=browser.find_element_by_css_selector('#index_pass')
c.send_keys('password')
element = driver.find_element_by_css_selector("index_login_button")
element.click()
element.sendKeys(Keys.ENTER)
login = browser_vk.find_element_by_id('quick_email')
login.send_keys('xxx')
password = browser_vk.find_element_by_id('quick_pass')
password.send_keys('xxx')
submit = browser_vk.find_element_by_id('quick_login_button')
submit.click()
browser_vk.implicitly_wait(10)