VTK with PySide2 is not working

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1

The following example is not working properly:

import sys
import PySide2
from PySide2.QtWidgets import QApplication
from vtkmodules.qt.QVTKRenderWindowInteractor import QVTKRenderWindowInteractor
from vtkmodules.vtkFiltersSources import vtkConeSource
from vtkmodules.vtkRenderingCore import vtkActor, vtkPolyDataMapper, vtkRenderer

app = QApplication(['QVTKRenderWindowInteractor'])

widget = QVTKRenderWindowInteractor()
widget.Initialize()
widget.Start()

ren = vtkRenderer()
widget.GetRenderWindow().AddRenderer(ren)

cone = vtkConeSource()
cone.SetResolution(8)

coneMapper = vtkPolyDataMapper()
coneMapper.SetInputConnection(cone.GetOutputPort())

coneActor = vtkActor()
coneActor.SetMapper(coneMapper)

ren.AddActor(coneActor)

widget.show()
app.exec_()

It fails with the following message:

Generic Warning: In /build/vtk/src/VTK-8.2.0/Rendering/Core/vtkRenderWindow.cxx, line 35
Error: no override found for 'vtkRenderWindow'.

Traceback (most recent call last):
  File "main.py", line 10, in <module>
    widget = QVTKRenderWindowInteractor()
  File "/usr/lib/python3.8/site-packages/vtkmodules/qt/QVTKRenderWindowInteractor.py", line 262, in __init__
    self._RenderWindow = vtkRenderWindow()
NotImplementedError: no concrete implementation exists for this class

Any help why this is happening? This is the example given in the distributed QVTKRendererWindowInteractor.py file on my Arch Linux vtk installation (version 8.2.0).

2

Import vtkmodules.vtkRenderingOpenGL2 and it will register itself as an implementation of vtkRenderWindow.

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