Add convenient "items" attribute property to "colour.colorimetry.spectrum.SpectralPowerDistribution" and "colour.colorimetry.spectrum.TriSpectralPowerDistribution" classes.
Add convenient "items" attribute property to "colour.colorimetry.spectrum.SpectralPowerDistribution" and "colour.colorimetry.spectrum.TriSpectralPowerDistribution" classes.

colour-science/colour