[Debian-astro-maintainers] Bug#868114: spectralcube: broken with astropy 2.0

[Ole Streicher]

Package: spectral-cube
Version: 0.4.0-2
Severity: serious
Control: block 868113 by -1

https://ci.debian.net/data/autopkgtest/unstable/amd64/s/spectral-cube/20170711_235845/log.gz

>From the CI log:
ImportError while importing test module
'/usr/lib/python3/dist-packages/spectral_cube/tests/test_stokes_spectral_cube.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3/dist-packages/spectral_cube/tests/test_stokes_spectral_cube.py:8:
in <module>
    from astropy.utils import OrderedDict, NumpyRNGContext
E   ImportError: cannot import name 'OrderedDict'