Last Updated : 12 Nov, 2021
A Set in Python is a collection of unique elements which are unordered and mutable. Python provides various functions to work with Set. In this article, we will see a list of all the functions provided by Python to deal with Sets.
Adding and Removing elementsWe can add and remove elements form the set with the help of the below functions -
Example: Adding and removing elements from the Set.
Python3
# set of letters
s = {'g', 'e', 'k', 's'}
# adding 's'
s.add('f')
print('Set after updating:', s)
# Discarding element from the set
s.discard('g')
print('\nSet after updating:', s)
# Removing element from the set
s.remove('e')
print('\nSet after updating:', s)
# Popping elements from the set
print('\nPopped element', s.pop())
print('Set after updating:', s)
s.clear()
print('\nSet after updating:', s)
Set after updating: {'g', 'k', 's', 'e', 'f'}
Set after updating: {'k', 's', 'e', 'f'}
Set after updating: {'k', 's', 'f'}
Popped element k
Set after updating: {'s', 'f'}
Set after updating: set() Table of Python Set Methods Functions Name Description add() Adds a given element to a set clear() Removes all elements from the set copy() Returns a shallow copy of the set difference() Returns a set that is the difference between two sets difference_update() Updates the existing caller set with the difference between two sets discard() Removes the element from the set frozenset() Return an immutable frozenset object intersection() Returns a set that has the intersection of all sets intersection_update() Updates the existing caller set with the intersection of sets isdisjoint() Checks whether the sets are disjoint or not issubset() Returns True if all elements of a set A are present in another set B issuperset() Returns True if all elements of a set A occupies set B pop() Returns and removes a random element from the set remove() Removes the element from the set symmetric_difference() Returns a set which is the symmetric difference between the two sets symmetric_difference_update() Updates the existing caller set with the symmetric difference of sets union() Returns a set that has the union of all sets update() Adds elements to the set
Note: For more information about Python Sets, refer to Python Set Tutorial.
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