catwoman models asymmetric transit lightcurves. Written in Python, it calculates light curves for any radially symmetric stellar limb darkening law, and where planets are modeled as two semi-circles of different radii. Catwoman is built on the batman library (ascl:1510.002) and uses its integration algorithm.
https://ui.adsabs.harvard.edu/abs/2020JOSS....5.2382J and https://ui.adsabs.harvard.edu/abs/2021AJ....162..165E