code: def _delete_file(self, line=""):
          
  
          if not self.all_ontologies:
              self._help_nofiles()
  
          else:
              out = []
              for each in self.all_ontologies:
                  if line in each:
                      out += [each]
              choice = self._selectFromList(out, line)
              if choice:
                  fullpath = self.LOCAL_MODELS + "/" + choice
                  if os.path.isfile(fullpath):
  
                      self._print("--------------")
                      self._print("Are you sure? [Y/N]")
                      var = input()
                      if var == "y" or var == "Y":
                          os.remove(fullpath)
                          manager.del_pickled_ontology(choice)
                          self._print("<%s> was deleted succesfully." % choice)
                          self.all_ontologies = manager.get_localontologies()
                      else:
                          return
  
                  else:
                      self._print("File not found.")
                  # delete
                  if self.current and self.current['fullpath'] == fullpath:
                      self.current = None
                      self.currentEntity = None
                      self.prompt = _get_prompt()
  
          return
docs: Delete an ontology
              2016-04-11: not a direct command anymore