Python-сообщество

 import lxml.html
import requests
 
login = '90XXXXXXXX'
password = 'password'
url = 'https://stavropol.beeline.ru/login/'
lk = 'https://stavropolskiy-kr.beeline.ru/customers/products/mobile/profile/'
 
headers = {
    'User-Agent':'Mozilla/5.0 (Windows NT 6.0; rv:14.0) Gecko/20100101 Firefox/14.0.1',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Accept-Language':'ru-ru,ru;q=0.8,en-us;q=0.5,en;q=0.3',
    'Accept-Encoding':'gzip, deflate',
    'Connection':'keep-alive',
    'DNT':'1'
}
session = requests.session()
data = session.get(url, headers=headers).content
 
page = lxml.html.fromstring(data)
form = page.forms[3]
form.fields['login'] = login
form.fields['password'] = password
response = session.post(form.action, data=form.form_values())
print(response.url)
final = session.get(response.url, allow_redirects=True)
print(final.url)

 https://identity.beeline.ru/identity/connect/authorize?scope=openid%20selfservice_identity%20usss_token%20profile&response_type=id_token&client_id=quantumartapp&state=c5206c79522e49048e9f7d20066bb2f8&nonce=fcba28d8071946ac8c831f904aa96b0e&response_mode=form_post&acr_values=fpcc-password%3AEAAAAEIbfGza8MKSPcdFKhjFF9xDe0fdR2fIHCE6LNFb2R45%20fpcc-remember_me%3AFalse%20one_time_password%3AFalse&login_hint=90XXXXXXXX&redirect_uri=https%3A%2F%2Fwww.beeline.ru%2Flogincallback