python 发送 钉钉自定义机器人消息

def dd(dd_token, dd_secret, dd_txt):
    timestamp = str(round(time.time() * 1000))
    secret = dd_secret  # 钉钉secret

    secret_enc = secret.encode('utf-8')
    string_to_sign = '{}\n{}'.format(timestamp, secret)
    string_to_sign_enc = string_to_sign.encode('utf-8')
    hmac_code = hmac.new(secret_enc, string_to_sign_enc, digestmod=hashlib.sha256).digest()
    sign = urllib.parse.quote_plus(base64.b64encode(hmac_code))
    # print(timestamp)
    # print(sign)

    url = 'https://oapi.dingtalk.com/robot/send?access_token=' + dd_token + '×tamp=' + timestamp + '&sign=' + sign

    print(url)
    data = {
        "msgtype": "text",
        "text": {"content": dd_txt}
    }

    headers = {'Content-Type': 'application/json'}

    res = requests.post(url=url, data=json.dumps(data), headers=headers)

    print(res.text)

dd_secret = 'SECxxxxxxxxxxxxxxx' #需要开启机器人加签 此处为加签的secret
dd_token = '06a6xxxxxxxxxxxxxxx' #自定义机器人的 token
dd_txt = '要发送的内容'

dd(dd_token, dd_secret, dd_txt)