diff --git a/tests/pytest/insert/insertTelnetLines.py b/tests/pytest/insert/insertTelnetLines.py
index a33d7248afa44cfc473954d3e25861349f3637bc..782ef01cfc10b686c0f1b972e2348a5253b653b1 100644
--- a/tests/pytest/insert/insertTelnetLines.py
+++ b/tests/pytest/insert/insertTelnetLines.py
@@ -29,7 +29,6 @@ class TDTestCase:
         tdSql.execute("create database if not exists test precision 'us'")
         tdSql.execute('use test')
 
-
         ### metric ###
         print("============= step1 : test metric  ================")
         lines0 = [