# TCORE Python API Release Note

| 日期 | **范例版本号** | **调整说明** |
| -- | --------- | -------- |

| 2020/12/01 | ZMQPython Sample 20201201.7z | <p>1.新增 lock ,确保REQ遵循一问一答机制</p><p>2.新增 class KeepAliveHelper() 方便调用</p> |
| ---------- | ---------------------------- | ----------------------------------------------------------------------- |
| 2020/12/28 | ZMQPython Sample 20201228.7z | 修正1201版tcoreapi\_mq.py Trade Ping/Pong无效果                               |
