/usr/share/python/runtime.d/sshfp.rtupdate is in sshfp 1.2.2-4.
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 sshfp /usr/share/sshfp
	pycompile -p sshfp  /usr/share/sshfp
fi
 |