Q: How do I create my own pair of mutable and immutable classes similar to String and StringBuffer ? A: Immutability in a “weak” sense (for lack of a better term) means creating a temporary read-only ...

Python 3.15 introduces an immutable or ‘frozen’ dictionary that is useful in places ordinary dicts can’t be used. Only very rarely does Python add a new standard data type. Python 3.15, when it’s ...