tce-load -i compiletc python3.8-dev cairo-dev

https://github.com/pygobject/pycairo/releases/download/v1.16.3/pycairo-1.16.3.tar.gz

cd pycairo-1.16.3

python3.8 setup.py build
sudo python3.8 setup.py install
sudo python3.8 setup.py install_pycairo_header
sudo python3.8 setup.py install_pkgconfig

/usr/local/include/pycairo/py3cairo.h
/usr/local/lib/pkgconfig/py3cairo.pc