class_docstr: Etree wrapper using lxml.etree or standard xml.etree
docstr: Retrieve attr from current active etree implementation
docstr_tok: ["Retrieve","attr","from","current","active","etree","implementation"]
code: def __getattribute__(self, attr):
      """Retrieve attr from current active etree implementation"""
      if (
          attr not in object.__getattribute__(self, "__dict__")
          and attr not in Etree.__dict__
      ):
          return object.__getattribute__(self._etree, attr)
      return object.__getattribute__(self, attr)
  
imports: import os
label_desc: Use image node_id 2 for calling the Etree obj's underlying member method code with example usage: obj.__getattribute__(attr) and returns: object, object