import cadquery as cq
w0=cq.Workplane('YZ',origin=(-11,0,0))
r=w0.sketch().segment((-29,47),(-27,9)).segment((-15,10)).segment((-17,47)).close().assemble().finalize().extrude(-21).union(w0.sketch().segment((-17,40),(-9,40)).segment((-9,33)).segment((7,41)).segment((2,50)).close().assemble().push([(9,-30)]).circle(20).finalize().extrude(43))