from requests import Session
from requests.auth import HTTPBasicAuth

from zeep import Client
from zeep.transports import Transport

user = 'admin.pbx.tech4u.pro'
password = '9enzwxb6'

session = Session()
session.auth = HTTPBasicAuth(user, password)

client = Client(
  'http://uccp.dc1.ru.itoolabs.net:8011/uccp',
  transport=Transport(session=session),
)

with client.settings(raw_response=True):
  responce = client.wsdl.dump()