      @staticmethod
      def clear_recent_files(serializer, menu_file):
          """ Creates or clears recent file list """
          logger.debug("clearing recent files list: '%s'", menu_file)
          recent_files = serializer.marshal(list())
          with open(menu_file, "wb") as out:
              out.write(recent_files.encode("utf-8"))
  
      def refresh_recent_menu(self):
          """ Refresh recent menu on save/load of files """
          self.recent_menu.delete(0, "end")
          self.build_recent_menu()
 
</s> remove         serializer = JSONSerializer
 </s> add         serializer = get_serializer("json") </s> remove         recent_json = self.serializer.marshal(recent_files)
        with open(recent_filename, "wb") as out:
            out.write(recent_json.encode("utf-8"))
 </s> add         self.serializer.save(recent_filename, recent_files) </s> remove             with open(recent_filename, "rb") as inp:
                recent_files = self.serializer.unmarshal(inp.read().decode("utf-8"))
 </s> add             recent_files = self.serializer.load(recent_filename) </s> remove         with open(menu_file, "rb") as inp:
            recent_files = serializer.unmarshal(inp.read().decode("utf-8"))
            logger.debug("Loaded recent files: %s", recent_files)
 </s> add         recent_files = serializer.load(menu_file)
        logger.debug("Loaded recent files: %s", recent_files) </s> remove         self.add_to_recent(cfgfile.name, command)
        logger.debug("Saved config: (command: '%s', cfgfile: '%s')", command, cfgfile)
 </s> add         cfg = self.cli_opts.get_option_values(command)
        self.serializer.save(filename, cfg)
        self.add_to_recent(filename, command)
        logger.debug("Saved config: (command: '%s', filename: '%s')", command, filename)
        serializer.save(menu_file, list())
      @staticmethod
      def clear_recent_files(serializer, menu_file):
          """ Creates or clears recent file list """
          logger.debug("clearing recent files list: '%s'", menu_file)
        serializer.save(menu_file, list())
        serializer.save(menu_file, list())
        serializer.save(menu_file, list())
  
      def refresh_recent_menu(self):
          """ Refresh recent menu on save/load of files """
          self.recent_menu.delete(0, "end")
          self.build_recent_menu()
keep keep keep keep replace replace replace keep keep keep keep keep
 Standardize serialization (#903)

* Standardize serialization

- Linting
- Standardize serializer use throughout code
- Extend serializer to load and save files
- Always load and save in utf-8
- Create documentation 
lib/gui/menu.py