import cadquery as cq
w0=cq.Workplane('YZ',origin=(-30,0,0))
r=w0.sketch().segment((-24,-12),(1,-50)).segment((32,-30)).segment((7,8)).close().assemble().finalize().extrude(17).union(w0.sketch().segment((-30,-36),(47,-36)).segment((47,42)).segment((-14,42)).arc((-45,41),(-30,14)).close().assemble().finalize().extrude(60))