preinst is in shogun-python-modular 1.1.0-4ubuntu2.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #!/bin/sh
# TODO: remove this file after releasing Squeeze
set -e
PYCENTRAL=/usr/bin/pycentral
if [ "$1" = upgrade ]
then
if dpkg --compare-versions "$2" lt 0.9.3-3 ; then
if [ -x $PYCENTRAL ]; then
# explicitly remove old python-central files
pycentral pkgremove shogun-python-modular
fi
fi
# be really sure also removing left-over files and dirs
# we do outside the previous 'if' since first pysupport
# release was already distributed
for pydir in site-packages dist-packages; do
for pyversion in 2.4 2.5 2.6; do
if [ -d /usr/lib/python$pyversion/$pydir/shogun/ ]; then
rm -f /usr/lib/python$pyversion/$pydir/shogun/*
rmdir --ignore-fail-on-non-empty /usr/lib/python$pyversion/$pydir/shogun/
fi
done
done
fi
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