Installing spectral-cube


This package has the following dependencies:

  • Python 2.7 or later (Python 3.x is supported)
  • Numpy 1.8 or later
  • Astropy 1.0 or later
  • radio_beam, used when reading in spectral cubes that use the BMAJ/BMIN convention for specifying the beam size.
  • Bottleneck, optional (speeds up median and percentile operations on cubes with missing data)


To install the latest stable release, you can type:

pip install spectral-cube

or you can download the latest tar file from PyPI and install it using:

python install

Developer version

If you want to install the latest developer version of the spectral cube code, you can do so from the git repository:

git clone
cd spectral-cube
python install

You may need to add the --user option to the last line if you do not have root access. You can also install the latest developer version in a single line with pip:

pip install git+

Installing into CASA

Installing packages in CASA is fairly straightforward. The process is described here. In short, you can do the following:

First, we need to make sure pip is installed. Start up CASA as normal, and type:

CASA <1>: from setuptools.command import easy_install

CASA <2>: easy_install.main(['--user', 'pip'])

Now, quit CASA and re-open it, then type the following to install spectral-cube:

CASA <1>: import pip

CASA <2>: pip.main(['install', 'spectral-cube', '--user'])