Installation

INSTALLATION OF PYSSN (DO IT ONLY ONCE)

• Install the last version (development one) of PyNeb:

pip install -U git+https://github.com/Morisset/PyNeb_devel.git

• You will need the Chianti database installed (http://www.chiantidatabase.org/download/CHIANTI_8.0.6_data.tar.gz) and the environment variable XUVTOP pointing to it.
• Install the pySSN distribution:

pip install -U git+https://github.com/Morisset/pySSN.git

• Download the data file (107Mo) from http://3mdb.astro.unam.mx/~morisset/data_pySSN.tgz
• Uncompress it somewhere, e.g. /user/myname/pySSN_data/
• Link this directory with the main program:

pySSN_link2data /user/myname/pySSN_data/data

• Compile the fortran program (this needs to be done after every update of pySSN, as the fortran code may have been changed):

pySSN_compile --compiler=gfortran

To install gfortran on OSX, visit https://github.com/fxcoudert/gfortran-for-macOS/releases