def isXRDS(xrd_tree):
    root = xrd_tree.getroot()
    return root.tag == root_tag
Set weakref to parent.
dataset/ETHPy150Open necaris/python3-openid/openid/yadis/etxrd.py/isXRDS--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO-Framework/openmdao.main/src/openmdao/main/vartree.py/VariableTree._parent