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
1503542001,I_kwDOAMm_X85Znjrx,7390,`Dataset` binary ops ignore `keep_attrs` option,7316393,closed,0,,,0,2022-12-19T20:20:41Z,2023-01-26T17:00:06Z,2023-01-26T17:00:06Z,CONTRIBUTOR,,,,"### What is your issue?

When doing arithmetic operations on two Dataset operands,
the `keep_attrs=True` option is ignored and therefore attributes  not kept.


Minimal example:

```python
import xarray as xr

ds1 = xr.Dataset(
    data_vars={""a"": 1, ""b"": 1},
    attrs={'my_attr': 'value'}
)
ds2 = ds1.copy(deep=True)

with xr.set_options(keep_attrs=True):
    print(ds1 + ds2)
```
This is not true for DataArrays/Variables which do take `keep_attrs` into account.

### Proposed fix/improvement
Datasets to behave the same as DataArray/Variables, and keep attributes during binary operations
when `keep_attrs=True` option is set. 

PR is inbound.
","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/7390/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,completed,13221727,issue
1503573351,PR_kwDOAMm_X85F0O57,7391,Follow keep_attrs in Dataset binary ops,7316393,closed,0,,,9,2022-12-19T20:42:20Z,2023-01-26T17:00:04Z,2023-01-26T17:00:04Z,CONTRIBUTOR,,0,pydata/xarray/pulls/7391,"<!-- Feel free to remove check-list items aren't relevant to your change -->

- [x] Closes #7390
- [x] Tests added
- [x] User visible changes (including notable bug fixes) are documented in `whats-new.rst`

Should I describe in  `whats-new.rst`?","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/7391/reactions"", ""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull
1535425143,PR_kwDOAMm_X85Hfgpl,7445,Update description of `keep_attrs` parameter in documentation of `apply_ufunc()`,7316393,closed,0,,,1,2023-01-16T20:01:56Z,2023-01-17T10:32:36Z,2023-01-16T21:32:07Z,CONTRIBUTOR,,0,pydata/xarray/pulls/7445,"Since #5041, `apply_ufunc()`'s `keep_attrs` parameter accepts `combine_attrs`-style strings. (First included  [v0.18.1](https://docs.xarray.dev/en/stable/whats-new.html#id192) release)
But this was not explained in its documentation.","{""url"": ""https://api.github.com/repos/pydata/xarray/issues/7445/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,,13221727,pull