Easy way to set the compression level for all dataarrays in a datatree? about datatree HOT 2 OPEN

Particularly with Datasets, I definitely would prefer to just provide a single command/attribute to set the entire thing. I haven't thought through datatrees very carefully yet, but I think the same thing applies. My main goal of compression is to save space on my harddrive and having a single setting seems easier to me.

I also don't really understand why I would ever want to have different compression levels for individual DataArrays in a Dataset or datatree.

For context, I mostly save data as float32/64 and occasionally int64/32.

from datatree.

Or is recommended practice to update the compression info for each DataArray? (The second answer to the above link)

I'll just say that this is the approach I've been taking.

However, I do think there is some room for improvement to the current api. The challenge of course is that the per-variable or per-dataset encoding dictionary needs to map to tree structure. In practice these nested-dict data structures are unruly to work with and I've found myself finding plenty of functionality in the DataArray.encoding approach.

@jwbrooks0 - I'm curious if you have thoughts on a possible api that meets your use case? Do you agree that a nested-dict of encoding parameters is less than ideal from an end-user perspective?

from datatree.