import cadquery as cq
w0=cq.Workplane('YZ',origin=(-10,0,0))
r=w0.sketch().segment((-13,-4),(-6,-4)).arc((4,12),(24,15)).segment((24,50)).segment((-13,50)).close().assemble().finalize().extrude(15).union(w0.sketch().push([(-22,-46)]).circle(4).reset().face(w0.sketch().segment((-9,1),(26,1)).segment((26,45)).segment((7,45)).arc((2,33),(-9,30)).close().assemble()).finalize().extrude(21))