preinst is in python3.4-minimal 3.4.0-2ubuntu1.
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
set -e
case "$1" in
install)
# remember newly installed runtime
mkdir -p /var/lib/python
touch /var/lib/python/python3.4_installed
;;
upgrade)
:
;;
abort-upgrade)
;;
*)
echo "preinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
exit 0
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