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/3483#issuecomment-550084872,https://api.github.com/repos/pydata/xarray/issues/3483,550084872,MDEyOklzc3VlQ29tbWVudDU1MDA4NDg3Mg==,14808389,2019-11-06T00:24:19Z,2019-11-07T15:46:15Z,MEMBER,"agreed, my suggestion only applies to `assign_coords`, and even in that function it might make sense to keep the old behaviour unless the coord was explicitly set.

Edit: this could be fixed by changing how `merge_coords` and `_get_priority_vars_and_indexes` work, but they look like magic to me","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,517195073
https://github.com/pydata/xarray/issues/3483#issuecomment-549525501,https://api.github.com/repos/pydata/xarray/issues/3483,549525501,MDEyOklzc3VlQ29tbWVudDU0OTUyNTUwMQ==,1217238,2019-11-04T20:08:27Z,2019-11-04T20:08:27Z,MEMBER,"> would it not be possible to always convert DataArray args using `.variable`? Unless I'm missing something, this should keep the information on the dimensions while also allowing to change the data independently:

It might make sense to change how `assign_coords`/`ds.coords[k] = v`]  works, but in general we *do* want `assign`/`ds[k] = v` to add in coordinates from assigned DataArray objects rather than dropping them silently.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,517195073
https://github.com/pydata/xarray/issues/3483#issuecomment-549456096,https://api.github.com/repos/pydata/xarray/issues/3483,549456096,MDEyOklzc3VlQ29tbWVudDU0OTQ1NjA5Ng==,2448579,2019-11-04T17:15:44Z,2019-11-04T17:15:44Z,MEMBER,That is a good point. Let's see what @shoyer thinks.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,517195073
https://github.com/pydata/xarray/issues/3483#issuecomment-549436798,https://api.github.com/repos/pydata/xarray/issues/3483,549436798,MDEyOklzc3VlQ29tbWVudDU0OTQzNjc5OA==,14808389,2019-11-04T16:33:40Z,2019-11-04T16:33:40Z,MEMBER,"would it not be possible to always convert DataArray args using `.variable`? Unless I'm missing something, this should keep the information on the dimensions while also allowing to change the data independently:
```python
obj.assign_coords(x=obj.x.copy(data=list(""efgh"")).variable, y=(obj.y * 2).variable)
obj.assign_coords(x=list(""efgh""), y=(obj.y * 2).variable)
```
both work","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,517195073
https://github.com/pydata/xarray/issues/3483#issuecomment-549429956,https://api.github.com/repos/pydata/xarray/issues/3483,549429956,MDEyOklzc3VlQ29tbWVudDU0OTQyOTk1Ng==,2448579,2019-11-04T16:19:37Z,2019-11-04T16:19:37Z,MEMBER,"The `x=DataArray` example looks like a bug.

The last example raises a `MergeError` regardless of the order of `x`, `y` which is good I think. It's pretty ambiguous to change both the index `x` and the `y=function(x)` at the same time. It will only work if xarray uses magic and infers that everything but `x` must be assigned before assigning `x`. 
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,517195073