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/5649#issuecomment-890132667,https://api.github.com/repos/pydata/xarray/issues/5649,890132667,IC_kwDOAMm_X841Dli7,14808389,2021-07-30T20:19:35Z,2021-07-30T20:24:04Z,MEMBER,"this clearly is a bug in the comparison functions (`equivalent` or `list_equiv`). I'm not sure where, though. `equivalent` calls `list_equiv` if one of the two arguments is a list (which seems intentional but might be wrong): https://github.com/pydata/xarray/blob/dddac11b01330791ffab4dfc72d226e71821973e/xarray/core/utils.py#L162-L179 and `list_equiv` seems to assume that both arguments are sized.

Edit: it *is* wrong, the docstring says ""if both objects are lists"" so it should be `isinstance(first, list) and isinstance(second, list)`

> would actually not be dropped but resolved to either `5` or `[5]`?

That might be a bit too special to be included directly in `xarray`. Note, however, that instead of a name you can also pass a function to `combine_attrs` so you should be able to customize this.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,956259734