Python set() Function

In python, a set is a built-in class, and this function is a constructor of this class. It is used to create a new set using elements passed during the call. It takes iterable as an argument and returns a new set object. The constructor syntax is given below.

Syntax of set() Function

It has the following syntax:

Parameters

• iterable: a collection of immutable elements.

Return Values

It returns a new set.

Examples of Python set() Function

Let's see some examples of set() function to understand it's functionality.

Example 1: Creating Sets from Strings using set()Function

This example demonstrates how the set() function is used to create sets and extract unique elements from strings.

Output:

set()
{'1', '2'}
{'a', 'n', 'v', 't', 'j', 'p', 'i', 'o'}

Example 2: Using set() Function with List, Tuple, and Dictionary

This example demonstrates how the set() function can be used with different data types like lists, tuples, and dictionaries.

Output:

{'15', '13', '12'}
{'n', 'v', 'a', 'j', 'p', 't', 'o', 'i'}
{1, 2, 3}

Example 3: Using set() and filter() to Store Unique Even Values

This example demonstrates how the set() function can be combined with filter() to store only even numbers as unique elements.

Output:

{8, 2, 4, 6}