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/1865#issuecomment-361473220,https://api.github.com/repos/pydata/xarray/issues/1865,361473220,MDEyOklzc3VlQ29tbWVudDM2MTQ3MzIyMA==,6153603,2018-01-30T04:23:26Z,2018-01-30T04:23:26Z,CONTRIBUTOR,"@shoyer, I'll look at the documentation once this is resolved and make a PR.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,292585285
https://github.com/pydata/xarray/issues/1865#issuecomment-361473052,https://api.github.com/repos/pydata/xarray/issues/1865,361473052,MDEyOklzc3VlQ29tbWVudDM2MTQ3MzA1Mg==,6153603,2018-01-30T04:22:19Z,2018-01-30T04:22:19Z,CONTRIBUTOR,"My apologies for having to re-open the issue, I should have tried the fix before closing.

I get the following error after changing my last line to: `ds.to_netcdf('/tmp/test.nc', encoding={'lat': {'_FillValue': None}, 'lon': {'_FillValue': None}})` as suggested.

```
  File ""/path/to/python3.6/site-packages/xarray/backends/netCDF4_.py"", line 354, in prepare_variable
    unlimited_dims=unlimited_dims)
  File ""/path/to/python3.6/site-packages/xarray/backends/netCDF4_.py"", line 176, in _extract_nc4_variable_encoding
    ' %r' % (backend, invalid))
ValueError: unexpected encoding parameters for 'netCDF4' backend:  ['_FillValue']
```
Do we just need to append '_FillValue' to the list of
````
     valid_encodings = set(['zlib', 'complevel', 'fletcher32', 'contiguous',
                           'chunksizes', 'shuffle'])
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,292585285
https://github.com/pydata/xarray/issues/1865#issuecomment-361471544,https://api.github.com/repos/pydata/xarray/issues/1865,361471544,MDEyOklzc3VlQ29tbWVudDM2MTQ3MTU0NA==,1217238,2018-01-30T04:10:53Z,2018-01-30T04:10:53Z,MEMBER,"If you have ideas for improving this further (even documentation), please do speak up.","{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,292585285
https://github.com/pydata/xarray/issues/1865#issuecomment-361470288,https://api.github.com/repos/pydata/xarray/issues/1865,361470288,MDEyOklzc3VlQ29tbWVudDM2MTQ3MDI4OA==,6153603,2018-01-30T04:01:23Z,2018-01-30T04:01:23Z,CONTRIBUTOR,Thanks.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,292585285
https://github.com/pydata/xarray/issues/1865#issuecomment-361464704,https://api.github.com/repos/pydata/xarray/issues/1865,361464704,MDEyOklzc3VlQ29tbWVudDM2MTQ2NDcwNA==,1217238,2018-01-30T03:21:34Z,2018-01-30T03:21:34Z,MEMBER,"Please take a look at the discussion in https://github.com/pydata/xarray/issues/1598.

You can use `ds.to_netcdf('/tmp/test.nc', encoding={'lat': {'_FillValue': None}, 'lon': {'_FillValue': None}})` to disable this. ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,292585285
https://github.com/pydata/xarray/issues/1865#issuecomment-361410274,https://api.github.com/repos/pydata/xarray/issues/1865,361410274,MDEyOklzc3VlQ29tbWVudDM2MTQxMDI3NA==,6153603,2018-01-29T22:33:47Z,2018-01-29T22:33:47Z,CONTRIBUTOR,"Please add the label ""CF conventions"" to this issue","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,292585285