This is makeindex, version 2.15 [TeX Live 2022/dev] (kpathsea + Thai support).
Scanning style file ./python.ist.......done (7 attributes redefined, 0 ignored).
Scanning input file aim-cu.idx....done (24 entries accepted, 0 rejected).
Sorting entries....done (116 comparisons).
Generating output file aim-cu.ind....done (57 lines written, 0 warnings).
Output written in aim-cu.ind.
Transcript written in aim-cu.ilg.