/usr/share/python3/runtime.d/frescobaldi.rtupdate is in frescobaldi 3.0.0+ds1-1.
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 7 | #! /bin/sh
set -e
if [ "$1" = rtupdate ]; then
py3clean -p frescobaldi /usr/share/frescobaldi
py3compile -p frescobaldi -V 3.2- /usr/share/frescobaldi
fi
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