/usr/share/python/runtime.d/gpxviewer.rtupdate is in gpxviewer 0.5.2-1.
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
pyclean -p gpxviewer /usr/share/gpxviewer
pycompile -p gpxviewer /usr/share/gpxviewer
fi
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