Base: [skip ci] remove Py2 code from PyObjectBase
Base: [skip ci] remove Py2 code from PyObjectBase

Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master,Fat-Zer/FreeCAD_sf_master