Installation methods：conda create -n foo -c vmtk python=3.6 itk vtk vmtk
It shows that the installation was successful, but run the following program

from vmtk import vmtkmeshreader
mesh_reader = vmtkmeshreader.vmtkMeshReader()

The error message is as follows：
Traceback (most recent call last):
File "ComputingCenterlines.py", line 1, in
from vmtk import vmtkmeshreader
File "/home/wangtai/anaconda3/envs/vmtk_env/lib/python3.6/site-packages/vmtk/vmtkmeshreader.py", line 18, in
import vtk
File "/home/wangtai/anaconda3/envs/vmtk_env/lib/python3.6/site-packages/vtk/init.py", line 33, in
from .vtkRenderingOpenGL2 import *
File "/home/wangtai/anaconda3/envs/vmtk_env/lib/python3.6/site-packages/vtk/vtkRenderingOpenGL2.py", line 9, in
from vtkRenderingOpenGL2Python import *
ModuleNotFoundError: No module named 'vtkRenderingOpenGL2Python'