set.difference_update() in python
"difference_update()" function is used to update the element which is not common in given two set.It will store it in the specified set.
Syntax:
set.difference_update(set_value)
Example-1
n = {10, 30, 50}
m = {10, 20, 70}
n.difference_update(m)
print(n)
Output
{50, 30}
Example-2
n = {10, 50, 100}
m = {10, 20, 70}
n.difference_update(m)
print(n)
Output
{100, 50}
Example-3
n = {"A", "B", "AB", "A"}
n.add("Z")
print(n)
Output
{'AB', 'B', 'A', 'Z'}