👋 Thanks for opening this PR! The Cookbook will be automatically built with GitHub Actions. To see the status of your deployment, click below.
🔍 Git commit SHA: 26b1afd
✅ Deployment Preview URL: https://ProjectPythia.github.io/cookbook-gallery/_preview/159

It looks like the issue is still there.

The error log is not very helpful here. But I wonder if the gallery generator is choking on this line in the config file

title: (re)Gridding with xarray

Maybe the fact that the title starts with ( is breaking one of our scripts.

After some local debugging, the reason turns out to be this line in the _gallery_info.yml file which has an empty tag:

tags:
  domains: 
  packages: 
    - xarray

etc.

Turns out our code doesn't know how to handle an empty set of tags.

A simple workaround would be to remove the domains field from the _gallery_info.yml file in the gridding cookbook repo. But our code shouldn't be that fragile. I'll see if there's a straightforward fix in the gallery code that we can implement here.

This should work.

The gallery code already had a check for empty tags but there was a bug in it. It was checking to see if the first item in a list was None, but there is no list at all in this case, just a plain old None.