from selenium.webdriver import Chrome
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import Select
import time
driver=Chrome()
driver.set_window_size(900,900)
url='https://mail.rambler.ru/?utm_source=head&utm_campaign=self_promo&utm_medium=header&utm_content=mail'
driver.get(url)
time.sleep(4)
a1=driver.find_element_by_name("login")
a1.send_keys('a')