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/2782#issuecomment-473481213,https://api.github.com/repos/pydata/xarray/issues/2782,473481213,MDEyOklzc3VlQ29tbWVudDQ3MzQ4MTIxMw==,1217238,2019-03-16T00:36:12Z,2019-03-16T00:36:12Z,MEMBER,thanks @scottyhq !,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,412645481
https://github.com/pydata/xarray/pull/2782#issuecomment-469941846,https://api.github.com/repos/pydata/xarray/issues/2782,469941846,MDEyOklzc3VlQ29tbWVudDQ2OTk0MTg0Ng==,1217238,2019-03-06T02:27:49Z,2019-03-06T02:27:49Z,MEMBER,"I don't think it's essential to have an integration test doing real network
access in xarray, so I would consider just dropping that part instead.

On Tue, Mar 5, 2019 at 6:10 PM Ryan Abernathey <notifications@github.com>
wrote:

> *@rabernat* commented on this pull request.
> ------------------------------
>
> In xarray/tests/test_backends.py
> <https://github.com/pydata/xarray/pull/2782#discussion_r262767473>:
>
> > @@ -1955,6 +1955,39 @@ def test_dump_encodings_h5py(self):
>              assert actual.x.encoding['compression_opts'] is None
>
>
> +@requires_h5fileobj
> +class TestH5NetCDFFileObject(TestH5NetCDFData):
> +    h5py = pytest.importorskip('h5py', minversion='2.9.0')
> +    engine = 'h5netcdf'
> +
> +    @network
> +    def test_h5remote(self):
> +        # alternative: http://era5-pds.s3.amazonaws.com/2008/01/main.nc
>
>
> +        import requests
> +        url = ('https://www.unidata.ucar.edu/'
> +               'software/netcdf/examples/test_hgroups.nc')
>
> Rather than going over the network, it might be quite easy to fire up a
> http.server.SimpleHTTPRequestHandler
> <https://docs.python.org/3/library/http.server.html#http.server.SimpleHTTPRequestHandler>
> as part of a fixture. This would allow us to test the remote capability
> without internet (and without depending on a third party to host a file.)
>
> —
> You are receiving this because you were mentioned.
> Reply to this email directly, view it on GitHub
> <https://github.com/pydata/xarray/pull/2782#pullrequestreview-211014423>,
> or mute the thread
> <https://github.com/notifications/unsubscribe-auth/ABKS1puGwIDrvG3NGvfq5oXqwdtbHSIDks5vTyOkgaJpZM4bGMFq>
> .
>
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,412645481
https://github.com/pydata/xarray/pull/2782#issuecomment-466260533,https://api.github.com/repos/pydata/xarray/issues/2782,466260533,MDEyOklzc3VlQ29tbWVudDQ2NjI2MDUzMw==,1217238,2019-02-22T03:27:56Z,2019-02-22T03:27:56Z,MEMBER,"This looks great!

I'll note one minor extension: you could look at the first few bytes of the file (the ""magic number"") to determine if it's a netCDF3 or netCDF4 file, and hence whether it can be opened with scipy or h5netcdf:

- `CDF\001` or `CDF\002` would indicate [netCDF3](https://en.wikipedia.org/wiki/NetCDF) (use scipy)
- `\211HDF\r\n\032\n` would indicate [netCDF4/HDF5](https://en.wikipedia.org/wiki/Hierarchical_Data_Format) (use h5netcdf)
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,412645481