preinst is in python-formencode 1.2.4-2ubuntu2.
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 | #!/bin/sh
# TODO: remove this file after releasing Squeeze
set -e
if [ "$1" = upgrade ]
then
if dpkg --compare-versions "$2" lt 1.1-1; then
pycentral pkgremove python-formencode
elif dpkg --compare-versions "$2" lt 1.2.2-1; then
pycentral pkgremove python-formencode
# pycentral will not remove files that were moved in 1.1-1
rm -rf /usr/lib/python2.4/site-packages/formencode/
rm -rf /usr/lib/python2.5/site-packages/formencode/
fi
fi
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