import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,10,0))
r=w0.sketch().segment((-31,32),(-21,27)).arc((-47,-25),(8,-46)).arc((14,-46),(15,-40)).arc((28,-20),(26,4)).segment((41,-4)).segment((50,14)).segment((-22,50)).close().assemble().finalize().extrude(-20)