Stpyvista not displaying .stl file when deployed on community cloud

[edsaac]

I managed to get the visualization going:

L Unit Optimisation Calculator

The issue seems to be that cadquery bundles an outdated version of vtk, which ends up conflicting with the vtk that pyvista uses as a dependency (cadquery and vtk compatibility · Issue #23 · CadQuery/ocp-build-system · GitHub). Playing with the order the dependencies are resolved in the requirements.txt seems to do the trick.

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Would you open an issue in the stpyvista repository to get this properly documented?

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A related post with instructions on installing cadquery and pyvista:

Solved ImportError: VTK version conflict with cadquery & stpyvista on Streamlit Cloud

I want to share a solution to a persistent deployment issue that might help other makers working with CAD visualization. When deploying apps using both cadquery and stpyvista to Streamlit Cloud, you might encounter VTK-related import errors. This happens because cadquery currently depends on an older VTK version (<=9.2.0), while stpyvista requires VTK >=9.4.0. After days of failed deployments and searching through GitHub issues, I finally found the solution in stpyvista’s known issues. Working…