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/3665#issuecomment-575282633,https://api.github.com/repos/pydata/xarray/issues/3665,575282633,MDEyOklzc3VlQ29tbWVudDU3NTI4MjYzMw==,10194086,2020-01-16T18:27:14Z,2020-01-16T18:27:14Z,MEMBER,"#3652 helps indeed. Example 1 from above now works without error. Example 2 still throws an error. However, I think this is fine, because you are unlikely to end up with an encoding that defines *only* a `_FillValue` and *not* a `dtype`.

I close this for now unless you disagree?


","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,545764524
https://github.com/pydata/xarray/issues/3665#issuecomment-574730653,https://api.github.com/repos/pydata/xarray/issues/3665,574730653,MDEyOklzc3VlQ29tbWVudDU3NDczMDY1Mw==,10194086,2020-01-15T16:09:16Z,2020-01-15T16:09:16Z,MEMBER,todo: Check if #3652 helps,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,545764524
https://github.com/pydata/xarray/issues/3665#issuecomment-571202598,https://api.github.com/repos/pydata/xarray/issues/3665,571202598,MDEyOklzc3VlQ29tbWVudDU3MTIwMjU5OA==,10194086,2020-01-06T16:17:47Z,2020-01-06T16:17:47Z,MEMBER,"This happens in:

https://github.com/pydata/xarray/blob/db36c5c0cdee2f5313a81fdeca8a8ae5491d1c8f/xarray/conventions.py#L106

My current workaround is:

``` python
if ""time"" in ds:
    ds.time.encoding.pop(""_FillValue"", None)

```

","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,545764524
https://github.com/pydata/xarray/issues/3665#issuecomment-571186961,https://api.github.com/repos/pydata/xarray/issues/3665,571186961,MDEyOklzc3VlQ29tbWVudDU3MTE4Njk2MQ==,2448579,2020-01-06T15:38:47Z,2020-01-06T15:38:47Z,MEMBER,"> The problem is that xarray adds a (unnecessary) _FillValue when saving a file.

yes. I think we should fix this. It breaks roundtripping ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,545764524