Handle case of no default namespace
Handle case of no default namespace

balanced/PyXB,jonfoster/pyxb1,jonfoster/pyxb-upstream-mirror,CantemoInternal/pyxb,balanced/PyXB,jonfoster/pyxb-upstream-mirror,CantemoInternal/pyxb,jonfoster/pyxb2,jonfoster/pyxb1,pabigot/pyxb,jonfoster/pyxb2,CantemoInternal/pyxb,jonfoster/pyxb-upstream-mirror,balanced/PyXB,jonfoster/pyxb2,pabigot/pyxb