import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,17,0))
r=w0.sketch().arc((1,31),(-47,-19),(20,-25)).segment((32,-25)).segment((32,-18)).arc((50,9),(32,36)).segment((32,43)).segment((9,43)).segment((9,36)).arc((4,34),(1,31)).assemble().finalize().extrude(-34)