Losing top level name attribute when saving and then reopening using h5netcdf

[melonora]

Hello!

I have a datatree that looks like this:

DataTree('my_container', parent=None)
│   Dimensions:           (y: 2, x: 2)
│   Dimensions without coordinates: y, x
│   Data variables:
│       latitude_series   (y, x) float64 32B 1.0 2.0 3.0 4.0
│       longitude_series  (y, x) float64 32B 5.0 6.0 7.0 8.0
└── DataTree('temperature_dataset')
        Dimensions:            (date: 2, x: 2, y: 2)
        Coordinates:
          * date               (date) datetime64[ns] 16B 2020-01-01 2020-01-02
            day_in_d           (date) int32 8B 0 1
        Dimensions without coordinates: x, y
        Data variables:
            temperatures_in_K  (x, y, date) float64 64B 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
        Attributes:
            name:               my_temperature
            latitude_in_deg:    my_latitude
            longitude_in_deg:   my_longitude
            reference_date:     2020-01-01
            conversion_factor:  1000.0

After saving with engine set to h5netcdfand then reopening with the same engine, I lose the name my_container of the root of the datatree structure. Any idea as to why?

[TomNicholas]

Hi @melonora ! Thanks for raising this.

We are just in the process of deprecating this repo in favour of xarray's main repository. Would you mind trying again but using xarray.core.datatree.DataTree and xarray.backends.api.open_datatree instead, and if it still happens re-raise this issue on the main xarray issue tracker?

[melonora]

Thanks for the quick response! I will check

[melonora]

Issue persists, will open an issue on the main repo

[melonora]

Opened here. Closing this issue.