# Immutability

TODO: ADD MORE

- strings are immutable, and so cannot have values assigned; new strings can be created, however [phone-number](../exercise-concepts/phone-number.md)
- `text` str in Python is [immutable](https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str). [reverse-string](../exercise-concepts/reverse-string.md)
