# Difficulty Accessing the vtkOCCTReader through the python modules

**URL:** https://discourse.vtk.org/t/difficulty-accessing-the-vtkocctreader-through-the-python-modules/12588
**Category:** Support
**Tags:** python
**Created:** [October 31, 2023, 5:43pm UTC](https://discourse.vtk.org/t/difficulty-accessing-the-vtkocctreader-through-the-python-modules/12588 "2023-10-31T17:43:47Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![ben.boeckel](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/b/ea5d25/32.png) [@ben.boeckel](https://discourse.vtk.org/u/ben.boeckel)
#### Post date: [November 1, 2023, 5:23pm UTC](https://discourse.vtk.org/t/difficulty-accessing-the-vtkocctreader-through-the-python-modules/12588/2 "2023-11-01T17:23:20Z")

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The wheels uploaded to PyPI do not have any external dependencies enabled (beyond those allowed by `auditwheel` and friends). The `vtkOCCTReader` needs an OpenCascade build, so it is not available in the wheels. You can build your own wheels by building VTK with the relevant module(s) enabled to get access to them.

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_[View the full topic](https://discourse.vtk.org/t/difficulty-accessing-the-vtkocctreader-through-the-python-modules/12588)._