Hi Eugeniya,
WrapVTK was an experimental project, it is not going to be used as the path forward for VTK Python wrapping. It doesn’t work with VTK 9.
As of VTK 9, the wrapping is managed by the new module system which is documented here and here with auto-generated APIs documentation here. The cmake recipes are completely different from VTK 8 and earlier versions of VTK. For VTK 9, wrapping requires that cmake configures your project as a VTK module.