import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,21,0))
w1=cq.Workplane('YZ',origin=(-38,0,0))
r=w0.sketch().arc((21,-81),(35,-40),(75,-23)).arc((-19,11),(21,-81)).assemble().finalize().extrude(-121).union(w1.sketch().segment((-53,-4),(-26,-4)).arc((64,-69),(70,42)).segment((70,46)).segment((63,46)).arc((37,52),(10,46)).segment((-53,46)).close().assemble().finalize().extrude(119))