old_contents: from urllib.parse import urljoin
  
  from oauthlib.oauth2 import LegacyApplicationClient
  from requests_oauthlib import OAuth2Session
  import slumber
  
  from . import settings
  
  REQUEST_TOKEN_URL = urljoin(settings.API_URL, '/oauth2/token/')
  
  
  def get_authenticated_connection():
      """
      Returns:
          an authenticated slumber connection
      """
      session = OAuth2Session(
          client=LegacyApplicationClient(
              client_id=settings.API_CLIENT_ID
          )
      )
  
      session.fetch_token(
          token_url=REQUEST_TOKEN_URL,
          username=settings.API_USERNAME,
          password=settings.API_PASSWORD,
          client_id=settings.API_CLIENT_ID,
          client_secret=settings.API_CLIENT_SECRET
      )
  
      return slumber.API(
          base_url=settings.API_URL, session=session
      )
  
new_contents: from urllib.parse import urljoin
  
  from oauthlib.oauth2 import LegacyApplicationClient
  from requests.auth import HTTPBasicAuth
  from requests_oauthlib import OAuth2Session
  import slumber
  
  from . import settings
  
  REQUEST_TOKEN_URL = urljoin(settings.API_URL, '/oauth2/token/')
  
  
  def get_authenticated_connection():
      """
      Returns:
          an authenticated slumber connection
      """
      session = OAuth2Session(
          client=LegacyApplicationClient(
              client_id=settings.API_CLIENT_ID
          )
      )
  
      session.fetch_token(
          token_url=REQUEST_TOKEN_URL,
          username=settings.API_USERNAME,
          password=settings.API_PASSWORD,
          auth=HTTPBasicAuth(settings.API_CLIENT_ID, settings.API_CLIENT_SECRET)
      )
  
      return slumber.API(
          base_url=settings.API_URL, session=session
      )
  
subject: Use HTTPBasicAuth when connecting to the API