Instagram login through requests

ig-login.py

import requests
import pprint

INSTAGRAM_URL = 'https://www.instagram.com'
USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36'
IG_ACCOUNTS = [
    {'username': 'username1', 'password': 'pass1'},
    {'username': 'username2', 'password': 'pass2'},
]

def login(username, password):
    login_url = INSTAGRAM_URL + '/accounts/login/ajax/'
    session = requests.Session()
    session.headers = { 'user-agent': USER_AGENT }
    session.headers.update({'Referer': INSTAGRAM_URL})
    req = session.get(INSTAGRAM_URL)
    session.headers.update({'X-CSRFToken': req.cookies['csrftoken']})
    login = session.post(login_url, data={'username': username, 'password': password}, allow_redirects=True)
    print('login: ')
    pprint.pprint(login)
    session.headers.update({'X-CSRFToken': login.cookies['csrftoken']})
    cookies = login.cookies
    results = login.json()
    print('login results')
    pprint.pprint(results)
    if (results['authenticated'] == False):
        return False, None
    return True, cookies

login(IG_ACCOUNTS[0]['username'], IG_ACCOUNTS[0]['password'])