The render-stl example gives an error 500 right now

[deeplook]

No more text, sorry.

[jtpio]

Indeed, thanks @deeplook for the report.

It looks like we are facing the same issue as in voila-dashboards/voila#224 when building the example with repo2docker, related to the Pygments version (2.3 instead of 2.4)

[jtpio]

voila-gallery/render-stl#6 should fix it.

This example was using a requirements.txt, and it looks like pip is not able to install Pygment 2.4.2 when Pygments 2.3.1 is already there from other dependencies (ipython, nbconvert...).

Voila requires Pygments as an indirect dependency: voila 0.1.6 -> jupyterlab-pygments 0.1.0 -> pygments >= 2.4.1

[jtpio]

Fixed by switching to conda's environment.yml.

Also, pygments>=2.4.1 is now a direct dependency of voila so the next release should fix the remaining installation issues.