Installation with conda

To install the latest Gammapy stable version as well as the most common optional dependencies for Gammapy, first install Anaconda and then run these commands:

conda config --add channels astropy --add channels sherpa
conda install gammapy naima \
    scipy matplotlib ipython-notebook \
    cython click

We strongly recommend that you install the optional dependencies of Gammapy to have the full functionality available:

conda install \
    scikit-image scikit-learn h5py pandas \
    aplpy photutils reproject

pip install iminuit

Sherpa is the only Gammapy dependency that’s not yet available on Python 3, so if you want to use Sherpa for modeling / fitting, install Anaconda Python 2 and

conda install sherpa

For a quick (depending on your download and disk speed, usually a few minutes), non-interactive install of Miniconda and Gammapy from scratch, use the commands from this script: gammapy-conda-install.sh.

Executing it like this should also work:

bash "$(curl -fsSL https://raw.githubusercontent.com/gammapy/gammapy/master/gammapy-conda-install.sh)"

To update to the latest version:

conda update --all
conda update gammapy

Overall conda is a great cross-platform package manager, you can quickly learn how to use it by reading the docs here.