import cadquery as cq
w0=cq.Workplane('YZ',origin=(-9,0,0))
w1=cq.Workplane('ZX',origin=(0,-18,0))
r=w0.sketch().arc((-37,23),(-37,25),(-36,23)).arc((-40,38),(-37,23)).assemble().finalize().extrude(59).union(w1.sketch().push([(-20,-32)]).circle(18).circle(12,mode='s').finalize().extrude(63))