import requests

with requests.Session() as x:
    url = 'http://www.wykop.pl/zaloguj/'
    USERNAME = "xxx"
    PASSWORD = "yyy"
    x.get(url)
    token = x.cookies['token']
    login_data = {'user[username]':'USERNAME', 'user[password]':'PASSWORD', '__token':'token'}
    x.post(url, data=login_data)
    page = x.get("http://www.wykop.pl/ludzie/max1983/")
    print(page.text)