#! /bin/sh set -e versions="3.6 3.7 3.8" 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