import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-2,0))
w1=cq.Workplane('YZ',origin=(-5,0,0))
r=w0.sketch().segment((-43,-31),(-11,-31)).segment((-11,7)).arc((-6,27),(-26,25)).segment((-43,25)).close().assemble().finalize().extrude(-48).union(w1.sketch().arc((39,43),(45,41),(50,43)).close().assemble().finalize().extrude(27))