Python frozenset
Python frozenset() builtin function creates and returns a new frozenset object from given iterable object.
In this tutorial, we will learn about the syntax of Python frozenset() function, and learn how to use this function with the help of examples.
Syntax
The syntax of frozenset() function is
frozenset([iterable])
where
| Parameter | Required/Optional | Description |
|---|---|---|
| iterable | Optional | An iterable object like list, set, tuple, etc., or any object that implements __iter__() method. |
If we pass a list/tuple/set to frozenset(), then it returns a frozen set created with the elements from the given list/tuple/set.
If we do not pass an argument to frozenset(), then it returns an empty frozen set.
Returns
The function returns object of type frozenset.
Examples
1 frozenset with list as argument
In this example, we will create a frozen set from a Python List object.
Python Program
iterable = [2, 4, 6, 8]
result = frozenset(iterable)
print(f'Return value : {result}')
Output
Return value : frozenset({8, 2, 4, 6})
2 frozenset from Set
In the following program, we will create a frozen set from a Python Set object.
Python Program
iterable = {2, 4, 6, 8}
result = frozenset(iterable)
print(f'Return value : {result}')
Output
Return value : frozenset({8, 2, 4, 6})
3 frozenset from Tuple
In the following program, we will create a frozen set from a Python Tuple object.
Python Program
iterable = (2, 4, 6, 8)
result = frozenset(iterable)
print(f'Return value : {result}')
Output
Return value : frozenset({8, 2, 4, 6})
4 Empty frozenset
In the following program, we will create an empty frozen set using frozenset() function. Pass no argument to frozenset() function, and the function returns an empty frozenset object.
Python Program
iterable = (2, 4, 6, 8)
result = frozenset(iterable)
print(f'Return value : {result}')
Output
Return value : frozenset()
Conclusion
In this Python Tutorial, we have learnt the syntax of Python frozenset() builtin function, and also learned how to use this function, with the help of Python example programs.