GPT答：

7i24.cn

import requests 
url = 'https://caigou.huist.cn/admin/login/captcha' 
data = {'type': 'web', 
        'token': '[put your token here]' 
        } 
response = requests.post(url, data) 
code = re.findall('"code":(.*?),"msg"', response.content) 
print code[0]