# Python - Set add() Method

The Python set add() method is used to add a new element to the set. As a set does not allow duplicate elements, hence an already present element will not be added again in the set.

### Syntax

set.add(elem)


### Parameters

 elem Required. specify the element which need to be added in the set.

### Example: Add new element

In the below example, the add() method is used to add a new element in the set called MySet.

MySet = {'MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT'}
#Adding 'SUN' to the set
print(MySet)


Output

{'MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT', 'SUN'}


Duplication of elements in a set is not allowed. Hence, it checks whether the element which is being added is present in the set or not.

week = {'MON', 'TUE', 'WED'}
#Add 'MON' to the set
print(week)


Output

{'MON', 'TUE', 'WED'}