html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/5655#issuecomment-892477231,https://api.github.com/repos/pydata/xarray/issues/5655,892477231,IC_kwDOAMm_X841Mh8v,14371165,2021-08-04T08:39:53Z,2021-08-04T08:39:53Z,MEMBER,"I'm not so sure it simplifies that considerably. The linked PR is the minimal changes I had to do to get it working for my use cases and most of the changes were just removing unneccessary `dict(x)`. I admittedly haven't checked every part of the code yet though.

My files have 2000+ variables with each variable having like 8 attributes. It starts taking a while when you have to read each one of those. 
At the moment, reading from file to Dataset takes about 2s, 600ms of those were reading attributes. 
With the PR I got it down to 200ms. Not as much as I'd hoped but I think I can get my LazyDict implementation much faster.

Changing file formats is too large of a change. We have used hdf5-files for many years and just switching to a different file format is just not something you do in painless way without (fast) backwards compatible alternative. It's hard to motivate a switch to xarray if the old alternative reads in files faster.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,957201551
https://github.com/pydata/xarray/issues/5655#issuecomment-892275313,https://api.github.com/repos/pydata/xarray/issues/5655,892275313,IC_kwDOAMm_X841Lwpx,1217238,2021-08-04T00:55:40Z,2021-08-04T00:55:40Z,MEMBER,"I appreciate the concern here, but I'm not sure we want to relax this constraint. Using built-in Python `dict` objects simplifies Xarray's internal logic considerably.

Could you talk a little bit more about your use-case and why you need lazy attributes? How many attributes are in your HDF5 files and how slow are they to load? Have you considered alternative file formats?","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,957201551