import cadquery as cq
w0=cq.Workplane('YZ',origin=(-78,0,0))
r=w0.sketch().segment((-79,40),(-47,40)).segment((-47,39)).segment((-20,39)).segment((-20,27)).segment((-17,31)).segment((100,31)).segment((100,59)).segment((-9,59)).segment((-31,73)).segment((-40,59)).segment((-79,59)).close().assemble().finalize().extrude(70).union(w0.workplane(offset=157/2).moveTo(-27,0).cylinder(157,73))