Built-in Functions
frozenset()
Create an immutable set of unique values.
frozenset(iterable=())
frozenset() removes duplicates like set(), but the resulting collection cannot be changed. Its immutability allows it to be used as a dictionary key or as a set member.
Parameters
| Name | Description |
|---|---|
| iterable | Optional iterable whose unique items become members. |
Returns
A new immutable frozenset.
Try it
Run it and change it
tags = frozenset(["red", "blue", "red"]) print(len(tags))