import cadquery as cq
w0=cq.Workplane('YZ',origin=(-74,0,0))
r=w0.workplane(offset=-25/2).moveTo(-4,8).cylinder(25,11).union(w0.sketch().segment((-7,-100),(15,-100)).segment((15,94)).segment((-5,94)).segment((-5,100)).segment((-7,100)).close().assemble().finalize().extrude(173))