setuptools python3-pkg-resources
cffi python3-cffi
html5lib python3-html5lib
cairocffi python3-cairocffi (>=0.9.0)
tinycss2 python3-tinycss2 (>=1.0.0)
cssselect2 python3-cssselect2
CairoSVG python3-cairosvg (>=2.4.0)
Pyphen python3-pyphen