=================================== FAILURES ===================================
_____________________________ test_xarray_dataset ______________________________
    @recorder.use_cassette('rap_compressed')
    def test_xarray_dataset():
        """Test getting data using xarray open_dataset over CDMRemote."""
        store = CDMRemoteStore('http://thredds-dev.unidata.ucar.edu/thredds/cdmremote/'
                               'grib/NCEP/RAP/CONUS_13km/RR_CONUS_13km_20150518_1200.grib2/GC')
>       ds = open_dataset(store)
siphon/cdmr/tests/test_xarray.py:20: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
../../../virtualenv/python3.6.3/lib/python3.6/site-packages/xarray/backends/api.py:326: in open_dataset
    return maybe_decode_store(store)
../../../virtualenv/python3.6.3/lib/python3.6/site-packages/xarray/backends/api.py:238: in maybe_decode_store
    drop_variables=drop_variables)
../../../virtualenv/python3.6.3/lib/python3.6/site-packages/xarray/conventions.py:594: in decode_cf
    vars, attrs = obj.load()
../../../virtualenv/python3.6.3/lib/python3.6/site-packages/xarray/backends/common.py:217: in load
    for k, v in self.get_variables().items())
siphon/cdmr/xarray_support.py:54: in get_variables
    for k, v in self.ds.variables.items())
../../../virtualenv/python3.6.3/lib/python3.6/site-packages/xarray/core/utils.py:308: in FrozenOrderedDict
    return Frozen(OrderedDict(*args, **kwargs))
siphon/cdmr/xarray_support.py:54: in <genexpr>
    for k, v in self.ds.variables.items())
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
self = <siphon.cdmr.xarray_support.CDMRemoteStore object at 0x7f6b36eea6d8>
name = 'Geopotential_height_isobaric'
var = <siphon.cdmr.dataset.Variable object at 0x7f6b36ec0860>
    def open_store_variable(self, name, var):
        """Turn CDMRemote variable into something like a numpy.ndarray."""
>       data = indexing.LazilyIndexedArray(CDMArrayWrapper(name, self))
E       AttributeError: module 'xarray.core.indexing' has no attribute 'LazilyIndexedArray'
siphon/cdmr/xarray_support.py:48: AttributeError
==================== 1 failed, 289 passed in 137.13 seconds ====================