python3-gi-cairo
python3-gi
gir1.2-gtk-3.0
gir1.2-wnck-3.0
python3-psutil>=5.7.2 // alternative to psutil
gir1.2-gtk3.0 // (needed to for PyGOject) Install with APT
gir1.2-wnck-3.0 // Install with APT (not available as pip package)
PyGOject // is required for pygobject to build
pycairo // alternative to python3-gi-cairo
psutil>=5.7.2 // alternative to python3-psutil
For more information: https://pygobject.readthedocs.io/en/latest/getting_started.html