diff --git a/.flake8-ignore b/.flake8-ignore
index aad6d4f..13c0dcd 100644
--- a/.flake8-ignore
+++ b/.flake8-ignore
@@ -14,7 +14,6 @@
 bin/websocket_monitor.py
 data/Witherspoon.py
 data/ipmi_variable.py
-data/model.py
 data/platform_variables.py
 ffdc/ffdc_collector.py
 ffdc/lib/ssh_utility.py
@@ -44,7 +43,6 @@
 lib/pldm_utils.py
 lib/pythonutil.py
 lib/redfish_request.py
-lib/secureboot/secureboot.py
 lib/state.py
 lib/tftp_update_utils.py
 lib/utilities.py
diff --git a/data/model.py b/data/model.py
index 8134c99..78a7284 100755
--- a/data/model.py
+++ b/data/model.py
@@ -1,7 +1,6 @@
 #!/usr/bin/env python3 -u
-import imp
-import string
-import sys
+import imp as imp
+import string as string
 
 from robot.libraries.BuiltIn import BuiltIn
 
diff --git a/lib/secureboot/secureboot.py b/lib/secureboot/secureboot.py
index f38458e..1c3ec3a 100644
--- a/lib/secureboot/secureboot.py
+++ b/lib/secureboot/secureboot.py
@@ -4,9 +4,8 @@
 This module provides some functions for Secure Boot verification.
 """
 
-import bmc_ssh_utils as bsu
-import var_funcs as vf
-from robot.libraries.BuiltIn import BuiltIn
+import bmc_ssh_utils as bsu  # NOQA
+import var_funcs as vf  # NOQA
 
 
 # Define 'constant' functions.