id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,active_lock_reason,draft,pull_request,body,reactions,performed_via_github_app,state_reason,repo,type
2275107296,I_kwDOAMm_X86Hm2Hg,8992,(i)loc slicer specialization for convenient slicing by dimension label as `.loc('dim_name')[:n]`,941907,open,0,,,0,2024-05-02T10:04:11Z,2024-05-02T14:47:09Z,,NONE,,,,"### Is your feature request related to a problem?

Until [PEP 472](https://legacy.python.org/dev/peps/pep-0472/), I'm sure we would  all love to be able to do indexing with labeled dimension names inside brackets. Here I'm proposing a slightly modified syntax which is possible to implement and would be quite convenient IMHO.

### Describe the solution you'd like

This is inspired by the Pandas `.loc(axis=n)` specialization. Essentially the .`(i)loc` accessors would become callable like in Pandas, which would enable to specify the desired order of dimensions in the subsequent slicing brackets. Schematically
```python
darr.loc('dim name 1', 'dim name 2')[x1:x2,y1:y2]

```
is equivalent to first returning an augmented `_LocIndexer` which now associates positional indexes to according to the provided dim order
```python
loc_idx_spec = darr.loc('dim name 1', 'dim name 2')
loc_idx_spec[x1:x2,y1:y2]
```
The first part is essentially similar to `.transpose('dim name 1', 'dim name 2')` and in the case of a `DataArray` it could be used instead. But this syntax could work also for Dataset. Additonally, it does not require an actual transpose operation. 

This accessor becomes especially convenient when you quickly want to index just one dimension such as
```python
darr.loc('dim name')[:x2]
```

### Describe alternatives you've considered

The equivalent `darr.sel({'dim name 1': slice(x1, x2), 'dim name 2': slice(y1,y2)})` is admittedly not that much worse, but for me writing `slice` feels cumbersome especially in situations when you have a lot of `None` specifications such as `slice(None,None,2)`. 

### Additional context

This `.loc(axis=n)` API is (not so obviously) documented for Pandas [here](https://pandas.pydata.org/docs/user_guide/advanced.html#using-slicers).","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/8992/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,issue