Support python 2.4 which did not have attributes for urlparse
Support python 2.4 which did not have attributes for urlparse

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