import cadquery as cq
w0=cq.Workplane('YZ',origin=(5,0,0))
r=w0.workplane(offset=-55/2).moveTo(0,22).cylinder(55,4).union(w0.sketch().segment((-14,-2),(-10,-26)).segment((14,-22)).segment((10,3)).segment((-10,0)).segment((-10,-2)).close().assemble().reset().face(w0.sketch().segment((-2,25),(-1,12)).segment((6,12)).segment((10,12)).segment((8,26)).close().assemble()).finalize().extrude(45))