issue_comments: 1019311097

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https://github.com/pydata/xarray/issues/6174#issuecomment-1019311097 https://api.github.com/repos/pydata/xarray/issues/6174 1019311097 IC_kwDOAMm_X848wXP5 14371165 2022-01-22T17:09:30Z 2022-01-22T17:09:30Z MEMBER

Is it that difficult to get a list of groups though? I've been testing a backend engine that merges many groups into 1 dataset (dims/coords/variables renamed slightly to avoid duplicate names until they've been interpolated together) using h5py.

Getting the groups are like the first thing you have to do, the code would look something like this: ```python

f = h5py.File('foo.hdf5','w') f.name '/' list(f.keys()) [] ``` https://docs.h5py.org/en/stable/high/group.html

Sure, it can be quite tiresome to navigate the backend engines and 3rd party modules in xarray to add this. But most of them uses h5py or something quite similar at its core so it shouldn't be THAT bad.

For example one could add another method here that retrieves them in a quick and easy way: https://github.com/pydata/xarray/blob/c54123772817875678ec7ad769e6d4d6612aeb92/xarray/backends/common.py#L356-L360

 
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