/usr/share/python/runtime.d/createrepo.rtupdate is in createrepo 0.10.3-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6  | #! /bin/sh
set -e
if [ "$1" = rtupdate ]; then
	pyclean -p createrepo /usr/share/createrepo
	pycompile -p createrepo -V 2.4- /usr/share/createrepo
fi
 |