  
      def build_recent_menu(self):
          """ Load recent files into menu bar """
          logger.debug("Building Recent Files menu")
          serializer = JSONSerializer
          menu_file = os.path.join(self.config.pathcache, ".recent.json")
          if not os.path.isfile(menu_file) or os.path.getsize(menu_file) == 0:
              self.clear_recent_files(serializer, menu_file)
          with open(menu_file, "rb") as inp:
              recent_files = serializer.unmarshal(inp.read().decode("utf-8"))
 
</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             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         recent_files = serializer.marshal(list())
        with open(menu_file, "wb") as out:
            out.write(recent_files.encode("utf-8"))
 </s> add         serializer.save(menu_file, list()) </s> remove         serializer = Serializer.get_serializer("json")
 </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)
        serializer = get_serializer("json")
  
      def build_recent_menu(self):
          """ Load recent files into menu bar """
          logger.debug("Building Recent Files menu")
        serializer = get_serializer("json")
          menu_file = os.path.join(self.config.pathcache, ".recent.json")
          if not os.path.isfile(menu_file) or os.path.getsize(menu_file) == 0:
              self.clear_recent_files(serializer, menu_file)
          with open(menu_file, "rb") as inp:
              recent_files = serializer.unmarshal(inp.read().decode("utf-8"))
keep keep keep keep 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