Create a new property tagged with a namespace and carried
           by a node.

def newNsPropEatName(self, ns, name, value):
        """Create a new property tagged with a namespace and carried
           by a node. """
        if ns is None: ns__o = None
        else: ns__o = ns._o
        ret = libxml2mod.xmlNewNsPropEatName(self._o, ns__o, name, value)
        if ret is None:raise treeError('xmlNewNsPropEatName() failed')
        __tmp = xmlAttr(_obj=ret)
        return __tmp