Default handling of defined entities, when should we define
          a new input stream ? When do we just handle that as a set
           of chars ?  OBSOLETE: to be removed at some point.

def handleEntity(self, ctxt):
        """Default handling of defined entities, when should we define
          a new input stream ? When do we just handle that as a set
           of chars ?  OBSOLETE: to be removed at some point. """
        if ctxt is None: ctxt__o = None
        else: ctxt__o = ctxt._o
        libxml2mod.xmlHandleEntity(ctxt__o, self._o)