What are frozen sets in python

Question

Are Frozen sets mutable?

Answer 1

A frozen set in Python is a set whose values cannot be modified. This means that it is immutable, unlike a normal set. Frozen sets help serve as a key in dictionary key-value pairs.

How to create frozen sets?

Frozen sets can be obtained using the frozenset() method. This function takes any iterable items and converts it to immutable.

Example:

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a={1, 2,5, 4.6, 7.8, 'r', 's'} b=frozenset(a) print(b)

Output: frozenset({1, 2, 4.6, 5, 7.8, ‘r’, ‘s’})

The above output consists of set b which is a frozen version of set a.

Accessing Elements of a Frozen Set

Elements of a frozen set can be accessed by looping through it as follows:

Example:

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b=frozenset([1, 2, 4.6, 5, 7.8, 'r', 's']) for x in b: print(x)

Output:

1
2
4.6
5
7.8
s

The above output shows that using the for loop, all elements of the frozen set b have been returned one after the other.

Frozen sets are immutable, therefore, you cannot perform operations such as add(), remove(), update(), etc.