issue_comments: 1092170184

I've added ipykernel to build dependencies and build moved few steps forward and failed again ```console + PYTHONPATH=/home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0 + /usr/bin/python3 setup.py build_sphinx -b man --build-dir build/sphinx /usr/lib/python3.8/site-packages/setuptools/dist.py:505: UserWarning: Normalizing '2022.03.0' to '2022.3.0' warnings.warn(tmpl.format(**locals())) running build_sphinx Running Sphinx v4.5.0 python exec: /usr/bin/python3 sys.path: ['/home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0', '/home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0', '/usr/lib64/python38.zip', '/usr/lib64/python3.8', '/usr/lib64/python3.8/lib-dynload', '/usr/lib64/python3.8/site-packages', '/usr/lib/python3.8/site-packages'] xarray: 2022.3.0, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/xarray/init.py making output directory... done [autosummary] generating autosummary for: README.rst, api-hidden.rst, api.rst, contributing.rst, developers-meeting.rst, ecosystem.rst, examples/ERA5-GRIB-example.ipynb, examples/ROMS_ocean_model.ipynb, examples/apply_ufunc_vectorize_1d.ipynb, examples/area_weighted_temperature.ipynb, ..., user-guide/indexing.rst, user-guide/interpolation.rst, user-guide/io.rst, user-guide/pandas.rst, user-guide/plotting.rst, user-guide/reshaping.rst, user-guide/terminology.rst, user-guide/time-series.rst, user-guide/weather-climate.rst, whats-new.rst [autosummary] generating autosummary for: /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.T.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.all.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.any.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.append.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.argmax.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.argmin.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.argsort.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.array.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.asi8.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.CFTimeIndex.asof.rst, ..., /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.ufuncs.sin.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.ufuncs.sinh.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.ufuncs.sqrt.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.ufuncs.square.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.ufuncs.tan.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.ufuncs.tanh.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.ufuncs.trunc.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.unify_chunks.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.where.rst, /home/tkloczko/rpmbuild/BUILD/xarray-2022.03.0/doc/generated/xarray.zeros_like.rst loading intersphinx inventory from https://docs.python.org/3/objects.inv... loading intersphinx inventory from https://pandas.pydata.org/pandas-docs/stable/objects.inv... loading intersphinx inventory from https://scitools-iris.readthedocs.io/en/latest/objects.inv... loading intersphinx inventory from https://numpy.org/doc/stable/objects.inv... loading intersphinx inventory from https://docs.scipy.org/doc/scipy/objects.inv... loading intersphinx inventory from https://numba.pydata.org/numba-doc/latest/objects.inv... loading intersphinx inventory from https://matplotlib.org/stable/objects.inv... loading intersphinx inventory from https://docs.dask.org/en/latest/objects.inv... loading intersphinx inventory from https://unidata.github.io/cftime/objects.inv... loading intersphinx inventory from https://rasterio.readthedocs.io/en/latest/objects.inv... loading intersphinx inventory from https://sparse.pydata.org/en/latest/objects.inv... building [mo]: targets for 0 po files that are out of date building [man]: all manpages updating environment: [new config] 1282 added, 0 changed, 0 removed reading sources... [ 0%] examples/ERA5-GRIB-example Notebook error: CellExecutionError in examples/ERA5-GRIB-example.ipynb:

ds = xr.tutorial.load_dataset("era5-2mt-2019-03-uk.grib", engine="cfgrib")

ValueError Traceback (most recent call last) /tmp/ipykernel_599775/3699872736.py in <module> ----> 1 ds = xr.tutorial.load_dataset("era5-2mt-2019-03-uk.grib", engine="cfgrib")

~/rpmbuild/BUILD/xarray-2022.03.0/xarray/tutorial.py in load_dataset(args, kwargs) 223 open_dataset 224 """ --> 225 with open_dataset(args, **kwargs) as ds: 226 return ds.load() 227

~/rpmbuild/BUILD/xarray-2022.03.0/xarray/tutorial.py in open_dataset(name, cache, cache_dir, engine, kws) 141 # retrieve the file 142 filepath = pooch.retrieve(url=url, known_hash=None, path=cache_dir) --> 143 ds = _open_dataset(filepath, engine=engine, kws) 144 if not cache: 145 ds = ds.load()

~/rpmbuild/BUILD/xarray-2022.03.0/xarray/backends/api.py in open_dataset(filename_or_obj, engine, chunks, cache, decode_cf, mask_and_scale, decode_times, decode_timedelta, use_cftime, concat_characters, decode_coords, drop_variables, backend_kwargs, args, *kwargs) 479 engine = plugins.guess_engine(filename_or_obj) 480 --> 481 backend = plugins.get_backend(engine) 482 483 decoders = _resolve_decoders_kwargs(

~/rpmbuild/BUILD/xarray-2022.03.0/xarray/backends/plugins.py in get_backend(engine) 154 engines = list_engines() 155 if engine not in engines: --> 156 raise ValueError( 157 f"unrecognized engine {engine} must be one of: {list(engines)}" 158 )

ValueError: unrecognized engine cfgrib must be one of: ['store'] ValueError: unrecognized engine cfgrib must be one of: ['store']

You can ignore this error by setting the following in conf.py:

nbsphinx_allow_errors = True

```