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/4055#issuecomment-628797255,https://api.github.com/repos/pydata/xarray/issues/4055,628797255,MDEyOklzc3VlQ29tbWVudDYyODc5NzI1NQ==,56925856,2020-05-14T18:01:45Z,2020-05-14T18:01:45Z,CONTRIBUTOR,"I also thought that, after the dask error message it's pretty easy to then look at the `dataset` and check what the problem dimension is. 

In general though, is that the type of layout you'd suggest for catching and re-raising errors? Using `raise Exception()` ? ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,617476316
https://github.com/pydata/xarray/issues/4055#issuecomment-628616379,https://api.github.com/repos/pydata/xarray/issues/4055,628616379,MDEyOklzc3VlQ29tbWVudDYyODYxNjM3OQ==,56925856,2020-05-14T12:57:21Z,2020-05-14T17:50:31Z,CONTRIBUTOR,"Nice, that's neater! Would this work, in the `maybe_chunk()` call? Sorry about the basic questions!

```python
def maybe_chunk(name, var, chunks):
    chunks = selkeys(chunks, var.dims)
    if not chunks:
           chunks = None
    if var.ndim > 0:
           # when rechunking by different amounts, make sure dask names change
           # by provinding chunks as an input to tokenize.
           # subtle bugs result otherwise. see GH3350
           token2 = tokenize(name, token if token else var._data, chunks)
           name2 = f""{name_prefix}{name}-{token2}""
           try:
               return var.chunk(chunks, name=name2, lock=lock)
           except NotImplementedError as err:
               raise Exception(""Automatic chunking fails for object arrays.""
                                           + ""These include cftime DataArrays."")
    else:
        return var
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,617476316
https://github.com/pydata/xarray/issues/4055#issuecomment-628513777,https://api.github.com/repos/pydata/xarray/issues/4055,628513777,MDEyOklzc3VlQ29tbWVudDYyODUxMzc3Nw==,56925856,2020-05-14T09:26:24Z,2020-05-14T09:26:24Z,CONTRIBUTOR,"Also, the contributing docs have been super clear so far! Thanks! :)","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,617476316
https://github.com/pydata/xarray/issues/4055#issuecomment-628513443,https://api.github.com/repos/pydata/xarray/issues/4055,628513443,MDEyOklzc3VlQ29tbWVudDYyODUxMzQ0Mw==,56925856,2020-05-14T09:25:48Z,2020-05-14T09:25:48Z,CONTRIBUTOR,"Cheers! Just had a look, is it as simple as just changing this line to the following, @dcherian ?

```python
if isinstance(chunks, Number) or chunks=='auto':
            chunks = dict.fromkeys(self.dims, chunks)
```

This seems to work fine in a lot of cases, except automatic chunking isn't implemented for `object` dtypes at the moment, so it fails if you pass a `cftime` coordinate, for example. 

One option is to automatically use `self=xr.decode_cf(self)` if the input dataset is cftime? Or could just throw an error.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,617476316
https://github.com/pydata/xarray/issues/4055#issuecomment-628212516,https://api.github.com/repos/pydata/xarray/issues/4055,628212516,MDEyOklzc3VlQ29tbWVudDYyODIxMjUxNg==,56925856,2020-05-13T19:56:34Z,2020-05-13T19:56:34Z,CONTRIBUTOR,"Oh ok I didn't know about this, I'll take a look and read the contribution docs tomorrow ! It'll be my first PR so may need a bit of hand-holding when it comes to tests. Willing to try though!","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,617476316