lint fixes

testenv/linters/pylint.ini

@@ -1,6 +1,6 @@
 [MASTER]
 ignore = .git
-extension-pkg-whitelist = 
+extension-pkg-whitelist =
 	setproctitle,
 	gpiod,
 	spidev,
@@ -35,6 +35,8 @@ disable =
 	unsubscriptable-object,
 	unused-private-member,
 	unspecified-encoding,
+	consider-using-f-string,
+	unnecessary-lambda-assignment,
 # https://github.com/PyCQA/pylint/issues/3882
 
 [CLASSES]