Installation

How to install SME:

Prerequisites:

• libgfortran5 (e.g., from https://pkgs.org/download/libgfortran5)

• gcc

0. (optional) create a virtual environment, and activate it.

   • download the environment.yml from https://github.com/AWehrhahn/SME.git

   • cd to the download location

   • conda env create -f environment.yml

   • source activate pysme

1. Use pip

   • For the “stable” version:

     • pip install pysme-astro

   • For the latest version use:

     • pip install git+https://github.com/AWehrhahn/SME.git

2. (optional) Download data files as part of IDL SME from http://www.stsci.edu/~valenti/sme.html

   • The atmosphere and nlte data files should be downloaded from the server correctly (assuming it is available) if not you can manually copy them into their respective storage locations in ~/.sme/atmospheres and ~/.sme/nlte_grids

     • atmospheres

       • everything from SME/atmospheres

     • nlte_grids

       • *.grd from SME/NLTE

3. Run SME

   • An simple minimum example is provided in the examples directory (https://github.com/AWehrhahn/SME/tree/master/examples). Make sure to also download the provided input structure.

   • You can then run it with: python minimum.py