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/pull/2105#issuecomment-387053966,https://api.github.com/repos/pydata/xarray/issues/2105,387053966,MDEyOklzc3VlQ29tbWVudDM4NzA1Mzk2Ng==,950575,2018-05-07T12:49:14Z,2018-05-07T12:49:14Z,CONTRIBUTOR,"> I would like to be able to round-trip something like the following dataset to netCDF. OK, I though you meant roundtrip from the netCDF file and back. In my line of work handling high level python objects serialization like that is usually not desired as the user should be responsible of how s/he wants to save the data. (I also never had an application that required timedelta, so it was hard for me to contextualize that.) I'll be away the next weeks, so if someone wants to pick it up from here please feel free to do so. Otherwise I'll try to get back to this once I return to the office.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,320283034 https://github.com/pydata/xarray/pull/2105#issuecomment-386826761,https://api.github.com/repos/pydata/xarray/issues/2105,386826761,MDEyOklzc3VlQ29tbWVudDM4NjgyNjc2MQ==,950575,2018-05-05T18:47:11Z,2018-05-05T18:47:11Z,CONTRIBUTOR,"@shoyer this is ready for a second round of reviews. > The last thing I'd like to see is support for automatically serializing/deserializing timedelta64 by saving an attribute dtype='timedelta64[ns]'. This will preserve the ability to roundtrip this data to netCDF, which I do think is useful for some users -- otherwise users will have xarray objects that they can no longer save to netCDF. I'm not sure I follow. Roundtrip is easier now since the original time unit dtype is preserved, no? Ping @rsignell-usgs who is a netCDF/CF specialist :wink: ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,320283034