import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,-11,0))
r=w0.sketch().segment((-12,23),(-9,20)).segment((31,47)).segment((29,50)).close().assemble().finalize().extrude(-34).union(w0.sketch().segment((-46,-11),(-8,-17)).arc((41,-38),(3,-1)).segment((8,30)).segment((-39,36)).close().assemble().finalize().extrude(57))