code: def copyNodeList(self, node):
          
          if node is None: node__o = None
          else: node__o = node._o
          ret = libxml2mod.xmlDocCopyNodeList(self._o, node__o)
          if ret is None:raise treeError('xmlDocCopyNodeList() failed')
          __tmp = xmlNode(_obj=ret)
          return __tmp
docs: Do a recursive copy of the node list.