code: def xpathNextParent(self, cur):
          
          if cur is None: cur__o = None
          else: cur__o = cur._o
          ret = libxml2mod.xmlXPathNextParent(self._o, cur__o)
          if ret is None:raise xpathError('xmlXPathNextParent() failed')
          __tmp = xmlNode(_obj=ret)
          return __tmp
docs: Traversal function for the "parent" direction The parent
            axis contains the parent of the context node, if there is
             one.