Add and Update Values from a Set in Python (Functions) - Python Tutorial for Beginners

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🖥️ How to Add and Update Values from a Set in Python (Functions Add, Update)

Adding or updating set items in Python is very easy. Sets are mutable, which means their elements can be changed. In fact, you can add one single item into a Set using the method add(). This method adds an item to the Set, but not at the very end of the set - since sets are not indexed.

○ Add Items to a Set in Python

my_set = {'red', 'green', 'blue'}
my_set.add('yellow')
my_set = {'blue', 'green', 'yellow', 'red'}

You can also add multiple items at once, using the method update().

my_set = {'red', 'green', 'blue'}
my_set.update(['yellow', 'orange'])
my_set = {'blue', 'orange', 'green', 'yellow', 'red'}

○ Update a Set in Python

Nonetheless, since a set is not indexed, you cannot update any value - once it has been added inside. Consequently, your only way to update an item in a Set would be to remove this value, then add another one. If you want to know how to remove an item from a set in Python, please follow along this video - and its next sections.

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