cubed 0.26 needs RegularChunkGrid which zarr 3.2 removed ?

[rsignell]

I asked Claude Code to modify a dask/coiled/aws notebook I had to use cubed/lithops/lambda instead. The notebook it created worked, but it said it needed to:

Pin zarr==3.1.6 in both the conda env and Dockerfile — cubed 0.26 needs RegularChunkGrid which zarr 3.2 removed.

Is this true?

[TomNicholas]

Yes zarr 3.2 made some breaking changes. We also had to adapt to them [in VZ] (zarr-developers/VirtualiZarr#957).

[tomwhite]

I asked Claude Code to modify a dask/coiled/aws notebook I had to use cubed/lithops/lambda instead.

Nice!

I just merged #893 which should help too.

[tomwhite]

Cubed 0.27.0 is now available at https://pypi.org/project/cubed/0.27.0/

[rsignell]

And just to report back that this worked great!
https://notebooksharing.space/view/d828eeb51df96f6d481176c25935668388709645a44579fe3ab9486bb389d1ae

(after I learned: lithops runtime deploy doesn't update the image if the function is already active; we need aws lambda update-function-code after each image rebuild.

[tomwhite]

@rsignell awesome!