PyLongslit is simple Python software for reduction of astronomical long-slit spectra. As for now, the software is tested and designed to work with data from ALFOSC at the Nordic Optical Telescope (NOT), but adaptions to other instruments should be possible - feel free to fork the repository and make your own changes.
Installation, tutorials and other docs can be found at:
https://kostasvaleckas.github.io/PyLongslit/
A notebook-friendly version can be found here.
The software is based on Johan Fynbo's PyLongslit and Kasper Heintz's PyReduc.