postinst is in libpython3.4-testsuite 3.4.3-1ubuntu1~14.04.7.
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 | #! /bin/sh
set -e
case "$1" in
configure)
files=$(dpkg -L libpython3.4-testsuite | sed -n '/^\/usr\/lib\/python3.4\/.*\.py$/p' | egrep -v '/lib2to3/tests/data|/test/bad')
if [ -n "$files" ]; then
python3.4 -E -S /usr/lib/python3.4/py_compile.py $files
if grep -sq '^byte-compile[^#]*optimize' /etc/python/debian_config; then
python3.4 -E -S -O /usr/lib/python3.4/py_compile.py $files
fi
else
echo >&2 "python3.4: can't get files for byte-compilation"
fi
esac
exit 0
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