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'}