This Python code snippet demonstrates the use of the PySEP library to model the evolution of a star. PySEP is a library specialized in stellar evolution physics. The code imports various default configurations for solar parameters, physics options, initial mass, and opacity tables from the library. It then initializes a stellar model with these configurations, evolves the model over time, and finally stores the results. This snippet is useful for researchers or students in astrophysics looking to simulate stellar processes.

from pysep.dsep import stellarModel as sm
from pysep.io.nml.control.defaults import solar
from pysep.io.nml.physics.defaults import phys1
from pysep.prems.defaults import m100_GS98
from pysep.opac.opal.defaults import GS98hz
 
model = sm(".", solar, phys1, GS98hz, m100_GS98)
model.evolve()
model.stash()