Python set symmetric_difference_update() usage and example

Métodos do Conjunto do Python

The symmetric_difference_update() method finds the symmetric difference set of two sets and updates the set it calls.

The symmetric difference of two sets A and B is the set of elements that are in A or B but not in their intersection.

The syntax of symmetric_difference_update() is:

A.symmetric_difference_update(B)

symmetric_difference_update() return value

• symmetric_difference_update() returns None (does not return any content). And it updates the set it calls.

Example: the working of symmetric_difference_update()

A = {'a', 'c', 'd'}
B = {'c', 'd', 'e'}
result = A.symmetric_difference_update(B)
print('A =', A)
print('B =', B)
print('result =', result)

Output result

A = {'a', 'e'}
B = {'d', 'c', 'e'}
result = None

Here, set A is updated to the symmetric difference of set A and set B. But set B does not change.

Recommended reading: Python Set symmetric_difference()

Métodos do Conjunto do Python