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/3552#issuecomment-556319412,https://api.github.com/repos/pydata/xarray/issues/3552,556319412,MDEyOklzc3VlQ29tbWVudDU1NjMxOTQxMg==,14808389,2019-11-20T19:59:48Z,2019-11-20T19:59:48Z,MEMBER,"the reason for `set` raising an error is that in [`drop`](https://github.com/pydata/xarray/blob/6b70107ab3063187b663290538c0d5a4107dab6e/xarray/core/dataset.py#L3622) `is_list_like(labels) or is_scalar(labels)` is used instead of `isinstance(labels, str) or not isinstance(labels, Iterable)`. Since `is_list_like` explicitly checks for `tuple` and `list`, passing `set` obviously won't call the right method.","{""total_count"": 2, ""+1"": 2, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,525903846
https://github.com/pydata/xarray/issues/3552#issuecomment-556105579,https://api.github.com/repos/pydata/xarray/issues/3552,556105579,MDEyOklzc3VlQ29tbWVudDU1NjEwNTU3OQ==,14808389,2019-11-20T17:01:06Z,2019-11-20T17:03:20Z,MEMBER,"explicitly selecting should work like this:
```python
ds = xr.Dataset(
    {""a"": (""b"", [0, 1, 2]), ""c"": (""b"", [-1, 2, 4]), ""d"": (""b"", [5, 1, 3])},
    coords={""b"": list(""abc"")},
)
variables = [""a"", ""d""]
ds[variables]
```
I think `Dataset.__getitem__` allows any kind of sequence here (e.g. sets)","{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,525903846
https://github.com/pydata/xarray/issues/3552#issuecomment-556094944,https://api.github.com/repos/pydata/xarray/issues/3552,556094944,MDEyOklzc3VlQ29tbWVudDU1NjA5NDk0NA==,14808389,2019-11-20T16:49:05Z,2019-11-20T16:49:05Z,MEMBER,so I guess we need to figure out why sets don't work anymore?,"{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,525903846
https://github.com/pydata/xarray/issues/3552#issuecomment-556094690,https://api.github.com/repos/pydata/xarray/issues/3552,556094690,MDEyOklzc3VlQ29tbWVudDU1NjA5NDY5MA==,14808389,2019-11-20T16:48:33Z,2019-11-20T16:48:33Z,MEMBER,"I think `drop` was deprecated in favor of `drop_sel` and `drop_vars` (#3475). Using v0.14.1, this works:
```python
ds = xr.Dataset({""a"": (""b"", [0, 1, 2]), ""c"": [-1, 2, 4]}, coords={""b"": list(""abc"")})
ds.drop_vars({""a"", ""b""})
ds.drop_vars([""a"", ""b""])
ds.drop([""a"", ""b""])
```

Additionally, I think we have a documentation bug: I can't reach the documentation on [`drop`](http://xarray.pydata.org/en/stable/generated/xarray.Dataset.drop.html).","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,525903846