issue_comments: 473183599

This data as json

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/2811#issuecomment-473183599 https://api.github.com/repos/pydata/xarray/issues/2811 473183599 MDEyOklzc3VlQ29tbWVudDQ3MzE4MzU5OQ== 1217238 2019-03-15T07:19:18Z 2019-03-15T07:19:18Z MEMBER

Your system might print dataset dimensions like Frozen(SortedKeysDict({'c': 2, 'b': 3})), but the iteration order will always be sorted (including if you write the dataset to disk as netcdf file).

When we drop support for Python 3.5, xarray might switch to dimensions matching order of insertion, since we'll get that for free with Python dictionary. But I still doubt we would make any guarantees about preserving dimension order in xarray operations, just like we don't guarantee variable order as part of xarray's API. It should be deterministic (with fixed versions of xarray and dependencies), but you shouldn't write your code in a way that breaks if changes.

What's your actual use-case here? What are you trying to do that needs preserving of dimension order?

 
{
    "total_count": 0,
    "+1": 0,
    "-1": 0,
    "laugh": 0,
    "hooray": 0,
    "confused": 0,
    "heart": 0,
    "rocket": 0,
    "eyes": 0
}
   420930870