code: def replace(self, target):
          
          if sys.version_info < (3, 3):
              raise NotImplementedError("replace() is only available "
                                        "with Python 3.3 and later")
          if self._closed:
              self._raise_closed()
          self._accessor.replace(self, target)
docs: Rename this path to the given path, clobbering the existing
          destination if it exists.