Python set() Function with Examples

set() Function in Python:

In Python, the set() function creates a set.

Note: set doesn’t allow duplicate elements and arranges in random order.

Syntax:

set(iterable)

Parameters

set() accepts only one optional parameter:

iterable: a sequence (string, tuple, etc.) or collection (set, dictionary, etc.) or an iterator object to be converted into a set.

Return Value:

The set() function returns:

If no parameters are passed, an empty set is returned.
Otherwise, a set constructed from the given iterable parameter is returned.

Examples:

Example1:

Input:

Given tuple = (3, 4, 3, 3, 2, 1, 1)
Given string = "btechgeeks"
Given list = [10, 20, 30, 10, 20, 40]

Output:

The result after applying set() function on the given tuple =  {1, 2, 3, 4}
The result after applying set() function on the given string =  {'b', 'k', 't', 'e', 'g', 'c', 's', 'h'}
The result after applying set() function on the given list =  {40, 10, 20, 30}

Example2:

Input:

Given tuple = (25, 35, 45)
Given string = "good"
Given list = [1, 3, 5, 6, 1]

Output:

The result after applying set() function on the given tuple =  {25, 35, 45}
The result after applying set() function on the given string =  {'o', 'g', 'd'}
The result after applying set() function on the given list =  {1, 3, 5, 6}

Method #1: Using Built-in Functions (Static Input)

Approach:

Give the tuple as static input and store it in a variable.
Give the string as static input and store it in another variable.
Give the list as static input and store it in another variable.
Pass the given tuple as an argument to the set() function that converts a given tuple to a set and returns a set.
Store it in another variable.
Print the result list after applying the set() function on the given tuple.
Similarly, do the same for the given string and list and print it.
The Exit of the Program.

Below is the implementation:

# Give the tuple as static input and store it in a variable.
gvn_tupl = (3, 4, 3, 3, 2, 1, 1)
# Give the string as static input and store it in another variable.
gvn_str = "btechgeeks"
# Give the list as static input and store it in another variable.
gvn_list = [10, 20, 30, 10, 20, 40]
# Pass the given tuple as an argument to the set() function that converts a given
# tuple to a set and returns a set.
# Store it in another variable.
rslt1 = set(gvn_tupl)
# Print the result list after applying set() function on the given tuple.
print("The result after applying set() function on the given tuple = ", rslt1)
# similarly do the same for the given string and list and print it.
rslt2 = set(gvn_str)
print("The result after applying set() function on the given string = ", rslt2)
rslt3 = set(gvn_list)
print("The result after applying set() function on the given list = ", rslt3)

Output:

The result after applying set() function on the given tuple =  {1, 2, 3, 4}
The result after applying set() function on the given string =  {'b', 'k', 't', 'e', 'g', 'c', 's', 'h'}
The result after applying set() function on the given list =  {40, 10, 20, 30}

Tip: Similarly, you can also try for the set, dictionaries.

Method #2: Using Built-in Functions (User Input)

Approach:

Give the tuple as user input using tuple (),map(),input(),and split() functions.
Store it in a variable.
Give the string as user input using the input() function and store it in another variable.
Give the list as user input using list(),map(),input(),and split() functions.
Store it in another variable.
Pass the given tuple as an argument to the set() function that converts a given tuple to a set and returns a set.
Store it in another variable.
Print the result list after applying the set() function on the given tuple.
Similarly, do the same for the given string and list and print it.
The Exit of the Program.

Below is the implementation:

# Give the tuple as user input using tuple(),map(),input(),and split() functions.
# Store it in a variable.
gvn_tupl = tuple(map(int, input(
   'Enter some random Tuple Elements separated by spaces = ').split()))
# Give the string as user input using the input() function and 
# store it in another variable.
gvn_str = input("Enter some random string = ")
# Give the list as user input using list(),map(),input(),and split() functions.
# Store it in a variable.
gvn_lst = list(map(int, input(
   'Enter some random List Elements separated by spaces = ').split()))
# Pass the given tuple as an argument to the set() function that converts a given
# tuple to a set and returns a set.
# Store it in another variable.
rslt1 = set(gvn_tupl)
# Print the result list after applying set() function on the given tuple.
print("The result after applying set() function on the given tuple = ", rslt1)
# similarly do the same for the given string and list and print it.
rslt2 = set(gvn_str)
print("The result after applying set() function on the given string = ", rslt2)
rslt3 = set(gvn_lst)
print("The result after applying set() function on the given list = ", rslt3)

Output:

Enter some random Tuple Elements separated by spaces = 3 4 2
Enter some random string = good
Enter some random List Elements separated by spaces = 6 6 7 8 8
The result after applying set() function on the given tuple = {2, 3, 4}
The result after applying set() function on the given string = {'d', 'g', 'o'}
The result after applying set() function on the given list = {8, 6, 7}