python import requests appid = 'your_appid' appsecret = 'your_appsecret' noncestr = ''.join(random.sample(string.ascii_letters + string.digits, 16)) timestamp = int(time.time()) sign = ''.join(random.sample(string.ascii_letters + string.digits, 32)) parameters = { 'app_id': appid, 'method': 'alipay.trade.query', 'version': '1.0', 'format': 'json', 'sign_type': 'MD5', 'sign': sign, 'biz_content': json.dumps({ 'out_trade_no': 'your_trade_no', 'trade_no': 'your_trade_no', 'subject': 'your_subject', 'total_amount': 'your_total_amount', 'discount': 'your_discount', 'seller_id': 'your_seller_id', 'trade_time': timestamp, 'body': 'your_body', 'product_code': 'your_product_code' }) } url = 'https://open.alipay.com/channel/quickDownload.htm' response = requests.post(url, data=parameters) result = response.json() print(result)