I agree. I wonder how confusing it would be to make `is` not allowed on integers or strings. Or define it to be equivalent to `==` for those types. Using `is` i

I agree. I wonder how confusing it would be to make `is` not allowed on integers or strings. Or define it to be equivalent to `==` for those types. Using `is` in these situations is almost always a big, if for whatever reason you really need it you can do `objectid(x) == objectid(y)` which is usefully explicitly.