Python uses the `is` operator, which is semantically much more explicit (and arguably correct, though C#'s use of the `is` operator is probably more correct).
Look, languages are moving away from permitting constructs like "if (x = 1)" because it's difficult to distinguish from "if (x == 1)". Adding "if (x === 1)" into the mix is arguably a step backwards in terms of clarity.
edit:
Kotlin uses `===`, which is another good option.