Qt for Python
PySide2 and Shiboken2
Docs at: https://wiki.qt.io/Qt_for_Python/GettingStarted
Repo at: http://code.qt.io/cgit/pyside/pyside-setup.git/
FL-5334 media-gfx/freecad-0.17_pre fails and needs bump anyway
FL-5543 Qt and KDE are in same kit, but have very different release cycles and rev-deps