diff --git a/tests/pytest/insert/basic.py b/tests/pytest/insert/basic.py
index e8698e9d0502eb6ef3e335daefdd9bf9854c30da..35f830d951d4e6d7ec14eb2a1f5d4b34d0b98b71 100644
--- a/tests/pytest/insert/basic.py
+++ b/tests/pytest/insert/basic.py
@@ -12,7 +12,6 @@
 # -*- coding: utf-8 -*-
 
 import sys
-import taos
 from util.log import *
 from util.cases import *
 from util.sql import *
diff --git a/tests/pytest/insert/float.py b/tests/pytest/insert/float.py
index 7c4474f7ad0be25da8ec0622061654ea620e0219..30d7e223f18abea7d6c26ad87c63833572a2b248 100644
--- a/tests/pytest/insert/float.py
+++ b/tests/pytest/insert/float.py
@@ -13,9 +13,6 @@
 
 import sys
 import datetime
-
-import taos
-
 from util.log import *
 from util.cases import *
 from util.sql import *
diff --git a/tests/pytest/insert/int.py b/tests/pytest/insert/int.py
index 8d38337576ccb78bd22155697b5d19c3655c11a1..d007cc56ea21d3b8c8fec5527e166e60cfe56cc0 100644
--- a/tests/pytest/insert/int.py
+++ b/tests/pytest/insert/int.py
@@ -12,7 +12,6 @@
 # -*- coding: utf-8 -*-
 
 import sys
-import taos
 import datetime
 
 from util.log import *
diff --git a/tests/pytest/util/cases.py b/tests/pytest/util/cases.py
index 1771c23620dbe547733e8c2ce317bd38961a87d3..9a4f0fc98a88dc87ff3521d666052e765669b0ae 100644
--- a/tests/pytest/util/cases.py
+++ b/tests/pytest/util/cases.py
@@ -71,7 +71,7 @@ class TDCases:
                     case.run()
                 except Exception as e:
                     tdLog.notice(repr(e))
-                    tdLog.notice("%s failed: %s" % (__file__, fileName))
+                    tdLog.exit("%s failed: %s" % (__file__, fileName))
                 case.stop()
                 runNum += 1
                 continue