Disable pylint old-style-class

.pylintrc

@@ -57,7 +57,8 @@ confidence=
 disable=fixme,
         missing-docstring,
         invalid-name,
-        too-many-lines
+        too-many-lines,
+        old-style-class
 # Enable the message, report, category or checker with the given id(s). You can
 # either give multiple identifier separated by comma (,) or put this option
 # multiple time (only on the command line, not in the configuration file where