python
from alipay import AliPay
alipay = AliPay(
appid='your_appid',
app_notify_url='your_notify_url',
app_private_key_path='your_private_key_path',
alipay_public_key_path='your_alipay_public_key_path',
sign_type='RSA2',
)
order_string = alipay.api_alipay_trade_page_pay(
out_trade_no='your_order_no',
total_amount='your_total_amount',
subject='your_subject',
return_url='your_return_url',
)
success = alipay.verify_callback(request.GET)
if success:
trade_no = request.GET.get('trade_no', None)
trade_status = request.GET.get('trade_status', None)
else:
