nist-asd (pypi): Basically a class which parses the NIST Atomic Spectra Database and saves the data to a dictionary on HDD. You can pass an matplotlib.axis, and the emissions lines will be plotted with an optional normalization factor. Parser for energy levels is also included.
Keywords: atom|atomic|configurations|database|einstein-coefficients|emission-lines|nist|parser|plasma|spectral|wavelength