        vtklib = importlib.__import__('vtkmodules')
        vtk_modules = sorted(vtklib.__all__)

    name_to_module = dict()
    for module in vtk_modules:
        try:
            module_dict = importlib.import_module('vtkmodules.' + module).__dict__
            for name in module_dict:
                name_to_module[name] = module
        except ModuleNotFoundError:
            # print(module, ' not found.')
            continue
