Hi,

I've downloaded the VTK using git. I have the last commit (118d20aa). I'm configuring and generating the Wheel this way:

cmake -GNinja -DVTK_BUILD_DOCUMENTATION=OFF -DVTK_BUILD_EXAMPLES=OFF -DBUILD_SHARED_LIBS=ON -DOpenGL_GL_PREFERENCE=GLVND -DVTK_USE_TK=OFF -DVTK_WRAP_JAVA=OFF -DVTK_WRAP_PYTHON=ON -DVTK_PYTHON_VERSION:STRING=3 -DVTK_WHEEL_BUILD=ON -DVTK_WRAP_TCL=OFF -DVTK_USE_CUDA=ON -DCMAKE_BUILD_TYPE=Release ../vtk/
ninja
python3 setup.py bdist_wheel
pip3 install ./dist/vtk-9.0.0-cp38-cp38-linux_x86_64.whl

I'm installing the wheel inside a virtualenv. When I try to import vtk that error that happens:

$ python
Python 3.8.2 (default, Mar 13 2020, 10:14:16) 
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import vtk
Traceback (most recent call last):
  File "/home/thiago/.virtualenvs/vtk90/lib/python3.8/site-packages/vtkmodules/__init__.py", line 13, in <module>
    from . import vtkCommonCore
ImportError: cannot import name 'vtkCommonCore' from partially initialized module 'vtkmodules' (most likely due to a circular import) (/home/thiago/.virtualenvs/vtk90/lib/python3.8/site-packages/vtkmodules/__init__.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/thiago/.virtualenvs/vtk90/lib/python3.8/site-packages/vtk.py", line 30, in <module>
    all_m = importlib.import_module('vtkmodules.all')
  File "/home/thiago/.virtualenvs/vtk90/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "/home/thiago/.virtualenvs/vtk90/lib/python3.8/site-packages/vtkmodules/__init__.py", line 15, in <module>
    import _vtkmodules_static
ModuleNotFoundError: No module named '_vtkmodules_static