Extension classes inherit from binding base
Extension classes inherit from binding base

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