address new pylint violations

Author: ajaykarpur

.pylintrc

@@ -92,6 +92,8 @@ disable=
     too-many-lines,
     too-many-locals,
     useless-object-inheritance, # TODO: Enable this check and fix code once Python 2 is no longer supported.
+    super-with-arguments,
+    raise-missing-from,
 
 [REPORTS]
 # Set the output format. Available formats are text, parseable, colorized, msvs