diff --git a/test/py/tests/test_efi_secboot/conftest.py b/test/py/tests/test_efi_secboot/conftest.py
index db6b8d3..406131c 100644
--- a/test/py/tests/test_efi_secboot/conftest.py
+++ b/test/py/tests/test_efi_secboot/conftest.py
@@ -2,18 +2,12 @@
 # Copyright (c) 2019, Linaro Limited
 # Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
 
-import os
-import os.path
-from subprocess import call, check_call, check_output, CalledProcessError
+""" Fixture for UEFI secure boot test """
+
+from subprocess import call, check_call, CalledProcessError
 import pytest
 from defs import *
 
-
-#
-# Fixture for UEFI secure boot test
-#
-
-
 @pytest.fixture(scope='session')
 def efi_boot_env(request, u_boot_config):
     """Set up a file system to be used in UEFI secure boot test.