from requests_oauthlib import OAuth2Session
from oauthlib.oauth2 import BackendApplicationClient


def get_token(client_id, client_secret, token_url, username, password, audience, scope):
    client = BackendApplicationClient(client_id=client_id)
    oauth = OAuth2Session(client=client)
    token = oauth.fetch_token(
        token_url=token_url,
        username=username,
        password=password,
        client_id=client_id,
        client_secret=client_secret,
        audience=audience,
        scope=scope
    )
    return token


def api_client(base_url, token):
    client = OAuth2Session(token=token)
    response = client.get(base_url)
    return response.content


client_id = '<your_client_id>'
client_secret = '<your_secret_id>'
token_url = '<oauth_token_url>'
username = '<your_username>'
password = '<your_password>'
audience = '<intended_audience>'
scope = ['scope1', 'scope2']

# Fetch token
token = get_token(client_id, client_secret, token_url, username, password, audience, scope)

# Now we can make API calls
api_response = api_client('https://api.example.com/resource', token)

print(api_response)