Python Set difference_update() MethodPython Functions

Difficulty Level:
Difficulty Level:

The difference_update() method gets the difference of two sets.

Example

#!/usr/bin/python3
# -*- coding: UTF-8 -*-

A = {1,4,5,6,11,13,14}
B={1,5,6,7,9,11,12}
print(A)
print(B)
print(A.difference_update(B))
print(A)
print(B)

Output:

{1, 4, 5, 6, 11, 13, 14}
{1, 5, 6, 7, 9, 11, 12}
None
{4, 13, 14}
{1, 5, 6, 7, 9, 11, 12}

Syntax

set_x.difference_update(set_y)

Parameters

set_x–one set

set_y–another set

Return Value

It doesn’t return any value.

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