fix lint errors

tests/ceod/api/test_db_mysql.py

@@ -2,7 +2,7 @@ import pytest
 
 from ceod.model import User
 from mysql.connector import connect
-from mysql.connector.errors import InterfaceError, ProgrammingError
+from mysql.connector.errors import ProgrammingError
 
 
 def test_api_create_mysql_db(cfg, client, g_admin_ctx, ldap_user, krb_user):
@@ -99,7 +99,7 @@ def test_api_passwd_reset_mysql(cfg, client, g_admin_ctx, ldap_user, krb_user):
     assert old_passwd != new_passwd
 
     # normal user cannot reset password for others
-    status, data = client.post(f"/api/db/mysql/someone_else/pwreset", json={}, principal=uid)
+    status, data = client.post("/api/db/mysql/someone_else/pwreset", json={}, principal=uid)
     assert status == 403
 
     # cannot password reset a user that does not have a database