import cadquery as cq
w0=cq.Workplane('YZ',origin=(31,0,0))
r=w0.sketch().arc((2,-23),(40,-25),(29,11)).arc((28,19),(26,27)).segment((6,27)).segment((6,43)).segment((14,43)).arc((-45,19),(2,-23)).assemble().push([(0,-39)]).circle(11).finalize().extrude(-62)