import cadquery as cq
w0=cq.Workplane('YZ',origin=(-16,0,0))
w1=cq.Workplane('XY',origin=(0,0,-25))
r=w0.sketch().segment((-11,-19),(18,-19)).segment((18,-9)).segment((19,-9)).segment((19,18)).segment((18,18)).segment((18,28)).segment((-11,28)).segment((-11,18)).segment((-11,-9)).close().assemble().push([(5,-26)]).circle(2).finalize().extrude(-34).union(w1.sketch().segment((5,-3),(6,-3)).arc((25,-19),(44,-3)).segment((50,-3)).segment((50,3)).segment((44,3)).arc((25,19),(6,3)).segment((5,3)).close().assemble().reset().face(w1.sketch().arc((21,-12),(27,-18),(31,-11)).arc((24,12),(21,-12)).assemble(),mode='s').finalize().extrude(32))