Python Tutorials · Python Sets
Frozenset
Learn all about Frozenset in this comprehensive tutorial.
5 min read beginner
- •frozenset is an immutable version of a set.
- •Use the frozenset() constructor to create a frozenset from any iterable.
- •Being immutable means you cannot add or remove elements.
Python frozenset
frozenset is an immutable version of a set.
Like sets, it contains unique, unordered, unchangeable elements.
Unlike sets, elements cannot be added or removed from a frozenset.
Creating a frozenset
Use the frozenset() constructor to create a frozenset from any iterable.
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Frozenset Methods
Being immutable means you cannot add or remove elements. However, frozensets support all non-mutating operations of sets.
| Method | Shortcut | Description | Try it |
|---|---|---|---|
| copy() | Returns a shallow copy | Try it » | |
| difference() | - | Returns a new frozenset with the difference | Try it » |
| intersection() | & | Returns a new frozenset with the intersection | Try it » |
| isdisjoint() | Returns True if there is NO intersection between two frozensets | Try it » | |
| issubset() | <= / < | Returns True if this frozenset is a (proper) subset of another | Try it » |
| issuperset() | >= / > | Returns True if this frozenset is a (proper) superset of another | Try it » |
| symmetric_difference() | ^ | Returns a new frozenset with the symmetric differences | Try it » |
| union() | | | Returns a new frozenset containing the union | Try it » |
Module quiz
2 questions1
Which of the following is true about Frozenset?
2
What is the most common pitfall when working with Frozenset?
Answer all questions to submit.