Auto-complete datatree paths containing . or ../

[eni-awowale]

What is your issue?

Copying over from xarray-contrib/datatree#189

Feature Request: Some form of path auto-completion

The more I play with datatree, the more I realize the huge potential of this package. Amazing work @TomNicholas.

I have been using dt for CMIP6 analysis and one of the things that is still fairly slow for me is to navigate into different specific leaves of the tree. Having some sort of incremental auto-complete of the path like this:

dt.['model/<click tab> --> dt.['model/experiment_a/]

similar to what happens in the bash shell with tab completion would be an absolute killer feature. Most users already know how to navigate this (from their terminal). For massive trees this would speed up the workflow tremendously.

On the other hand I have no idea how complex this is to implement. Just wanted to suggest this feature.

[TomNicholas]

To clarify what's said in xarray-contrib/datatree#189 - autocompletion is already implemented, what is not implemented is autocompletion of any path containing a . or ../.

In other words this issue now tracks this ToDo in the code:

xarray/xarray/core/datatree.py

Line 678 in a74a605

# TODO allow auto-completing relative string paths, e.g. `dt['path/to/../ <tab> node'`