The add() method in Python Sets can be used to add an element in the given set.
Syntax
set.add(element)Let’s try to add new element (string type) to the given set,
s = {'one', 2, 3, 'two', 'four'}
print('Before addition : ', s)
s.add('val') # adding val to given set s
print('After addition : ', s)O/P
Before addition : {2, 3, ‘two’, ‘four’, ‘one’}
After addition : {2, 3, ‘two’, ‘four’, ‘val’, ‘one’}
Add Multiple Elements to a Set in Python
The update() method in Python Sets can be used to add multiple values to a given Python Set.
Syntax
set.update(object)The object inside the update() method can be any iterable object (sets, tuples, lists, dictionaries etc).
Hence, with update() method, we can :
1. Add a set to a given set
2. Add a list to a given set
3. Add a tuple to a given set
4. Add a dictionary to a given set
s = {1, 2, 3, 4}
to_add = {'one', 'two', 'three', 'four'}
print('Before addition : ', s)
s.update(to_add) # adding set to_add in s
print('After addition : ', s)O/P
Before addition : {1, 2, 3, 4}
After addition : {‘three’, 1, 2, 3, 4, ‘one’, ‘four’, ‘two’}
Please note that, adding an element in Set is an optimized process, with time complexity a O(1).
That’s all here.
