diff --git a/tests/sanity/ignore-2.12.txt b/tests/sanity/ignore-2.12.txt
index c36546d84..3fd7253af 100644
--- a/tests/sanity/ignore-2.12.txt
+++ b/tests/sanity/ignore-2.12.txt
@@ -1,3 +1,5 @@
 plugins/action/netconf.py action-plugin-docs # base class for deprecated network platform modules using `connection: local`
 plugins/action/network.py action-plugin-docs # base class for network action plugins
 plugins/action/grpc.py action-plugin-docs # base class for grpc action plugins
+plugins/plugin_utils/compat/telnetlib.py pep8!skip  # vendored file
+plugins/plugin_utils/compat/telnetlib.py pylint!skip  # vendored file
diff --git a/tests/sanity/ignore-2.13.txt b/tests/sanity/ignore-2.13.txt
index c36546d84..3fd7253af 100644
--- a/tests/sanity/ignore-2.13.txt
+++ b/tests/sanity/ignore-2.13.txt
@@ -1,3 +1,5 @@
 plugins/action/netconf.py action-plugin-docs # base class for deprecated network platform modules using `connection: local`
 plugins/action/network.py action-plugin-docs # base class for network action plugins
 plugins/action/grpc.py action-plugin-docs # base class for grpc action plugins
+plugins/plugin_utils/compat/telnetlib.py pep8!skip  # vendored file
+plugins/plugin_utils/compat/telnetlib.py pylint!skip  # vendored file
diff --git a/tests/sanity/ignore-2.14.txt b/tests/sanity/ignore-2.14.txt
index c36546d84..3fd7253af 100644
--- a/tests/sanity/ignore-2.14.txt
+++ b/tests/sanity/ignore-2.14.txt
@@ -1,3 +1,5 @@
 plugins/action/netconf.py action-plugin-docs # base class for deprecated network platform modules using `connection: local`
 plugins/action/network.py action-plugin-docs # base class for network action plugins
 plugins/action/grpc.py action-plugin-docs # base class for grpc action plugins
+plugins/plugin_utils/compat/telnetlib.py pep8!skip  # vendored file
+plugins/plugin_utils/compat/telnetlib.py pylint!skip  # vendored file
diff --git a/tests/sanity/ignore-2.15.txt b/tests/sanity/ignore-2.15.txt
index c36546d84..3fd7253af 100644
--- a/tests/sanity/ignore-2.15.txt
+++ b/tests/sanity/ignore-2.15.txt
@@ -1,3 +1,5 @@
 plugins/action/netconf.py action-plugin-docs # base class for deprecated network platform modules using `connection: local`
 plugins/action/network.py action-plugin-docs # base class for network action plugins
 plugins/action/grpc.py action-plugin-docs # base class for grpc action plugins
+plugins/plugin_utils/compat/telnetlib.py pep8!skip  # vendored file
+plugins/plugin_utils/compat/telnetlib.py pylint!skip  # vendored file
diff --git a/tests/sanity/ignore-2.16.txt b/tests/sanity/ignore-2.16.txt
index c36546d84..3fd7253af 100644
--- a/tests/sanity/ignore-2.16.txt
+++ b/tests/sanity/ignore-2.16.txt
@@ -1,3 +1,5 @@
 plugins/action/netconf.py action-plugin-docs # base class for deprecated network platform modules using `connection: local`
 plugins/action/network.py action-plugin-docs # base class for network action plugins
 plugins/action/grpc.py action-plugin-docs # base class for grpc action plugins
+plugins/plugin_utils/compat/telnetlib.py pep8!skip  # vendored file
+plugins/plugin_utils/compat/telnetlib.py pylint!skip  # vendored file
diff --git a/tests/sanity/ignore-2.9.txt b/tests/sanity/ignore-2.9.txt
index c36546d84..3fd7253af 100644
--- a/tests/sanity/ignore-2.9.txt
+++ b/tests/sanity/ignore-2.9.txt
@@ -1,3 +1,5 @@
 plugins/action/netconf.py action-plugin-docs # base class for deprecated network platform modules using `connection: local`
 plugins/action/network.py action-plugin-docs # base class for network action plugins
 plugins/action/grpc.py action-plugin-docs # base class for grpc action plugins
+plugins/plugin_utils/compat/telnetlib.py pep8!skip  # vendored file
+plugins/plugin_utils/compat/telnetlib.py pylint!skip  # vendored file