如何使用python使用基本身份验证来获取持有者token？

import requests
from requests.auth import HTTPBasicAuth

username = 'your_username'
password = 'your_password'

auth_url = 'https://api.example.com/auth'  # 身份验证API的URL
token_url = 'https://api.example.com/token'  # 获取令牌的URL

# 发送身份验证请求
auth_response = requests.get(auth_url, auth=HTTPBasicAuth(username, password))

# 提取持有者令牌
if auth_response.status_code == 200:
    auth_data = auth_response.json()
    holder_token = auth_data['holder_token']
else:
    print('身份验证失败')

# 使用持有者令牌获取其他资源
headers = {'Authorization': f'Bearer {holder_token}'}
response = requests.get(token_url, headers=headers)