This is makeindex, version 2.15 [TeX Live 2018] (kpathsea + Thai support).
Scanning style file ./python.ist.......done (7 attributes redefined, 0 ignored).
Scanning input file BBc1.idx....done (572 entries accepted, 0 rejected).
Sorting entries........done (6066 comparisons).
Generating output file BBc1.ind....done (725 lines written, 0 warnings).
Output written in BBc1.ind.
Transcript written in BBc1.ilg.
