You should require python3.6

Get source from here : https://github.com/pygments/pygments
python3.6 setup.py build
sudo python3.6 setup.py install --root=/tmp/pygments
cd /tmp/pygments
sudo find . -not -type 'd' (Delete __pycache__ folders and files)
sudo mksquashfs pygments/ python3.6-pygments.tcz