Get the source from here : https://launchpad.net/python-distutils-extra

Assuming that you have the source in /home/tc/Downloads,
cd /home/tc/Downloads
tar zxf python-distutils-extra-2.39.tar.gz
cd python-distutils-extra-2.39
python3.6 setup.py build
sudo python3.6 setup.py install --root=/tmp/python-distutils-extra
cd /tmp/python-distutils-extra
for i in $(sudo find . -not -type 'd' | grep "__pycache__")
do
sudo rm -rf "$i"
done
cd /tmp
mksquashfs python-distutils-extra-2.39/ python-distutils-extra-2.39.tcz
mv python-distutils-extra-2.39.tcz /home/tc