I figure I need to include the line from paraview.web.protocols import ParaViewWebProtocol Sorry. k. -- View this message in context: http://the-unofficial-paraview-developers-forum.34153.x6.nabble.com/paraview-web-4-pipeline-tp2618p2631.html Sent from the The Unofficial ParaView Developers Forum mailing list archive at Nabble.com.