import cadquery as cq
w0=cq.Workplane('XY',origin=(0,0,-44))
r=w0.sketch().segment((-42,-39),(-40,-37)).segment((-38,-39)).segment((-40,-40)).arc((-37,-21),(-41,-40)).close().assemble().finalize().extrude(20).union(w0.sketch().segment((0,-39),(3,-40)).segment((50,39)).segment((48,40)).close().assemble().finalize().extrude(88))