Issue #66: Linting.

Author: MattClarkson

sksurgeryutils/ui/sksurgerystereorenderer_demo.py

@@ -31,7 +31,7 @@
 
 LOGGER = logging.getLogger(__name__)
 
-# pylint: disable=too-many-instance-attributes, too-many-positional-arguments
+# pylint: disable=too-many-instance-attributes, too-many-positional-arguments, invalid-name
 
 class TrackballActorWithZoom(vtk.vtkInteractorStyleTrackballActor):
     """