postinst is in python3-lib2to3 3.6.5-3.
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
versions="3.6 3.7"
case "$1" in
configure)
for v in $versions; do
python=python$v
[ -x /usr/bin/$python ] || continue
files=$(dpkg -L python3-lib2to3 | sed -n '/^\/usr\/lib\/'$python'\/.*\.py$/p')
if [ -n "$files" ]; then
/usr/bin/$python -E -S /usr/lib/$python/py_compile.py $files
if grep -sq '^byte-compile[^#]*optimize' /etc/python/debian_config; then
/usr/bin/$python -E -S -O /usr/lib/$python/py_compile.py $files
fi
else
echo >&2 "$python: can't get files for byte-compilation"
fi
done
esac
exit 0
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