WARNING db thread except:23067L

[617450941]

WARNING db thread except:23067L
这个错误提示是什么意思 sql 语句能正常执行 但是会弹出这个错误

这个是代码
def clear_overdue_user_flow(self,port):
conn = cymysql.connect(host=Config.MYSQL_HOST, port=Config.MYSQL_PORT, user=Config.MYSQL_USER,
passwd=Config.MYSQL_PASS, db=Config.MYSQL_DB, charset='utf8')
cur = conn.cursor()
cur.execute('update user set passwd="5f6123" where port = ' + str(port) +'')
cur.close()
conn.commit()
conn.close()