On Wed, Nov 18, 2015 at 13:49:06 -0700, David Gobbi wrote: > Oops! Thanks for finding this. I can cherry-pick your (pending) fix to > my python-py3k branch for VTK 6.3. Yeah, this is that weird bug we saw months ago rearing its head, but it has been consistent lately. At least it's a simple fix :) . --Ben