import cadquery as cq
w0=cq.Workplane('YZ',origin=(0,0,0))
r=w0.sketch().segment((-44,-12),(-20,-48)).segment((5,-31)).segment((-19,5)).close().assemble().reset().face(w0.sketch().segment((27,-38),(35,-50)).segment((45,-43)).segment((40,-36)).segment((40,-38)).close().assemble()).finalize().extrude(-1).union(w0.sketch().arc((-15,11),(9,3),(-4,25)).arc((-41,42),(-15,11)).assemble().push([(-13,11)]).circle(1,mode='s').finalize().extrude(2))