From d2c388aa34f6a9329060335d7f9f137fde1d6815 Mon Sep 17 00:00:00 2001
From: "vn.py" <xiaoyou.chen@foxmail.com>
Date: Fri, 15 Nov 2019 10:51:40 +0800
Subject: [PATCH] [Fix] query history data bug

---
 vnpy/gateway/bybit/bybit_gateway.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/vnpy/gateway/bybit/bybit_gateway.py b/vnpy/gateway/bybit/bybit_gateway.py
index b123bedc..b0ed8236 100644
--- a/vnpy/gateway/bybit/bybit_gateway.py
+++ b/vnpy/gateway/bybit/bybit_gateway.py
@@ -532,8 +532,9 @@ class BybitRestApi(RestClient):
             else:
                 data = resp.json()
 
-                ret_msg = data["ret_msg"]
-                if ret_msg != "ok":
+                ret_code = data["ret_code"]
+                if ret_code:
+                    ret_msg = data["ret_msg"]
                     msg = f"获取历史数据出错，错误信息：{ret_msg}"
                     self.gateway.write_log(msg)
                     break