import cadquery as cq
w0=cq.Workplane('YZ',origin=(-27,0,0))
r=w0.sketch().segment((-40,-46),(19,-46)).segment((19,-88)).segment((100,-88)).segment((100,40)).segment((100,88)).segment((-40,88)).close().assemble().finalize().extrude(-15).union(w0.sketch().arc((-100,32),(-81,18),(-62,32)).segment((-70,32)).arc((-81,26),(-92,32)).close().assemble().reset().face(w0.sketch().segment((-100,43),(-92,43)).arc((-81,50),(-70,43)).segment((-62,43)).arc((-81,57),(-100,43)).assemble()).finalize().extrude(70))