From 69d8861faf09d21825ca792723760f93b5d24544 Mon Sep 17 00:00:00 2001
From: Hui Li <huili@taosdata.com>
Date: Mon, 19 Oct 2020 16:56:33 +0800
Subject: [PATCH] [TD-1750]

---
 src/connector/python/linux/python3/taos/cinterface.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/connector/python/linux/python3/taos/cinterface.py b/src/connector/python/linux/python3/taos/cinterface.py
index 409b3ba02b..609154a3a4 100644
--- a/src/connector/python/linux/python3/taos/cinterface.py
+++ b/src/connector/python/linux/python3/taos/cinterface.py
@@ -225,6 +225,7 @@ class CTaosInterface(object):
 
         if connection.value == None:
             print('connect to TDengine failed')
+            raise ConnectionError("connect to TDengine failed")
             # sys.exit(1)
         #else:
         #    print('connect to TDengine success')
-- 
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