import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-17))
r=w0.sketch().segment((-37,-50),(-4,-50)).segment((-4,-39)).segment((4,-39)).segment((4,-36)).segment((8,-36)).segment((8,-14)).segment((4,-14)).segment((4,-11)).segment((-4,-11)).segment((-4,-9)).segment((-37,-9)).close().assemble().finalize().extrude(5).union(w0.sketch().segment((0,42),(22,0)).segment((37,7)).segment((15,50)).close().assemble().finalize().extrude(35))