VTK compiles and installs perfectly fine, but after adding the built files to my Python directory, importing vtk gives a DLL error:
Python 3.8.10 (tags/v3.8.10:3d8993a, May 3 2021, 11:48:03) [MSC v.1928 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import vtk
Traceback (most recent call last):
File "C:\Program Files\Python38\lib\site-packages\vtkmodules\__init__.py", line 13, in <module>
from . import vtkCommonCore
ImportError: DLL load failed while importing vtkCommonCore: The specified module could not be found.
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Program Files\Python38\lib\site-packages\vtk.py", line 30, in <module>
all_m = importlib.import_module('vtkmodules.all')
File "C:\Program Files\Python38\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "C:\Program Files\Python38\lib\site-packages\vtkmodules\__init__.py", line 15, in <module>
import _vtkmodules_static
ModuleNotFoundError: No module named '_vtkmodules_static'
>>>
I believe this might be due to the fact that the api-ms-win-core libraries are not included in the build. Using Dependency Walker on vtkCommonCore-9.0.dll shows many missing DLLs:
Additionally, the same exact build installed in Intel Python does not have this error:
Python 3.7.10 (default, Jun 3 2021, 22:08:24) [MSC v.1916 64 bit (AMD64)] :: Intel Corporation on win32
Warning:
This Python interpreter is in a conda environment, but the environment has
not been activated. Libraries may fail to load. To activate this environment
please see https://conda.io/activation
Type "help", "copyright", "credits" or "license" for more information.
Intel(R) Distribution for Python is brought to you by Intel Corporation.
Please check out: https://software.intel.com/en-us/python-distribution
>>> import vtk
>>>
How can I fix this issue?