import cadquery as cq
w0=cq.Workplane('YZ',origin=(-43,0,0))
r=w0.sketch().segment((-20,-3),(27,-73)).segment((53,-56)).segment((6,14)).close().assemble().finalize().extrude(-6).union(w0.sketch().push([(-78,49)]).circle(22).push([(63,36)]).circle(37).finalize().extrude(93))