import cadquery as cq
w0=cq.Workplane('YZ',origin=(-36,0,0))
r=w0.sketch().segment((-50,-23),(-31,-23)).arc((-11,-30),(8,-23)).segment((50,-23)).segment((50,26)).segment((3,26)).arc((-11,30),(-26,26)).segment((-50,26)).close().assemble().finalize().extrude(73)