It is NOT fork of dezoomify from SourceForge
(nor valgur/dezoomify nor lovasoa/dezoomify-py from GitHub). All of them use the same code and work only with zoomify maps.
It is code which someone made in 2014/2015 for one zoomify map (pobieracz_mapy_wroc.py) and I helped to modify it (I don't remeber).
In 2019 I made script for krpano maps.