SNCosmo works on Python 3.7+ and depends on the following Python packages:
Install using conda (recommended)¶
If you are using Anaconda or the conda package manager, you can install SNCosmo from the conda-forge channel:
conda install -c conda-forge sncosmo
Install using pip¶
First ensure that numpy and cython are installed. Then:
pip install sncosmo
--no-deps flag is optional, but highly recommended if you
already have numpy, scipy and astropy installed, since otherwise
pip will sometimes try to “help” you by upgrading your Numpy
installation, which may not always be desired.
If you get a
PermissionError this means that you do not have
the required administrative access to install new packages to your
Python installation. In this case you may consider using the
--user option to install the package into your home directory.
You can read more about how to do this in the pip documentation.
Do not install sncosmo or other third-party packages using
sudo unless you are fully aware of the risks.
You will need a C compiler (e.g.
clang) to be
installed for the installation to succeed.
Install latest development version¶
SNCosmo is being developed on github. To get the latest development
git clone git://github.com/sncosmo/sncosmo.git cd sncosmo
pip install -e .
This will install a development version of the SNCosmo package that automatically picks up any changes that you made when you import sncosmo for the first time in a Python interpreter. If you make any edits to the Cython code in SNCosmo (files with .c or .pyx extensions), then you will need to run this command again to compile that code for your changes to be picked up.
Several additional packages are recommended for enabling optional functionality in SNCosmo.
matplotlib for plotting functions.