Python Selenium get cookie value

scrape.py

import time
from selenium import webdriver

driver = webdriver.Chrome('./chromedriver')
driver.get('https://ui.lkqd.com/login')
assert 'LKQD' in driver.title

time.sleep(2)
username_field = driver.find_element_by_name('username')
username_field.send_keys('myusername')

password_field = driver.find_element_by_name('password')
password_field.send_keys('mypassword')

submit_button = driver.find_elements_by_xpath("//*[contains(text(), 'Sign In')]")[0]
submit_button.click()
time.sleep(2)

cookies_list = driver.get_cookies()
cookies_dict = {}
for cookie in cookies_list:
    cookies_dict[cookie['name']] = cookie['value']

session_id = cookies_dict.get('session')
print(session_id)

driver.quit()