Voilà Weekly Meeting

2019 / 10 / 14

Attendees

• Sylvain Corlay
• Martin Renou
• Zach Sailer
• Andrew Schlaepfer
• Vidar T. Fauske
• Jeremy Tuloup
• Maarten Breddels*

Updates

Governance

JEP on voilà inclusion.

Community

• Sprint on Voila at PyConDE & PyData Berlin: https://twitter.com/jtpio/status/1183158509665472513
  • Auto port detection, by Kristiyan Katsarov: https://github.com/voila-dashboards/voila/pull/424
  • Document the ability to hide cells based on cell tags, by Aart Goossens: https://github.com/voila-dashboards/voila/pull/418
  • Discussions about Qt with Cristián Maureira-Fredes: https://github.com/voila-dashboards/voila/issues/399

Tech

Jupyter client

• Workaround in jupyter_client. When spawning multiple kernels at once (~20 kernels), the probability to get a “ZMQError - address already in use” was quite high. This workaround reduces this probability by making sure two kernels don’t get assigned the same communication ports.
  • issue: https://github.com/jupyter/jupyter_client/issues/487
  • workaround: https://github.com/jupyter/jupyter_client/pull/490
  • Kevin Bates would like this new behaviour to be disabled optionally with a flag (adding the flag is required for the next jupyter_server release).

Voila templates

• conda package for voila-material template
  • repo: https://github.com/voila-dashboards/voila-material
  • PR: https://github.com/conda-forge/staged-recipes/pull/9852
  • recipe: https://github.com/conda-forge/voila-material-feedstock
• Vuetify template examples by Robert Seidl: https://github.com/seidlr/voila-vuetify-template-examples
• Template cookiecutter by Aart Goossens: https://github.com/aartgoossens/voila-template-cookiecutter

Jupyter Server

• Voted (among a smaller group) on adoption of Jupyter Server in multiple frontends.
  • Positive agreement!
  • See notes from the Jupyter Server meeting.
• Also voted on what do to with jupyter/notebook.
  • Mixed feelings, but generally agreed to move notebook to depend on jupyter_server
  • See notes from the Jupyter Server meeting.
• Developing process for migration.
  • I can only budget ~20% of my time right now, so it’s moving slowly.