Python &引用；“地位”：400，”；代码"；：&引用；错误的“请求”；API盒

当我试图用API更新文件夹框的描述时，我遇到了一个400错误的请求错误 有人能帮我吗

def put_comment(real_rst1, buffer_id):
    url = "https://api.box.com/2.0/folders/" + buffer_id[1:-3]
    #print(url)
    print(real_rst1)
    #error in payload
    payload = {'description': real_rst1} 
    headers = {'Authorization': 'Bearer fUpqywpPhJx6YAWu9UW2AVhvMGZ0FAl9'}
    response = requests.request("PUT", url, headers = headers) #data = payload)
    print(response.text.encode('utf8'))

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我确信错误来自有效负载线路