If you are used with Sage development, you can try to apply the changes on your version of Sage. Otherwise, you can define your own class that inherits from Sage's one and overwrite the _floordiv_ method.
If you are used with Sage development, you can try to apply the changes on your version of Sage. Sage and recompile. Otherwise, you can define your own class that inherits from Sage's one and overwrite the _floordiv_ method.