Python Set Methods

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 elements

We can add and remove elements form the set with the help of the below functions - 

• add(): Adds a given element to a set
• clear(): Removes all elements from the set
• discard(): Removes the element from the set
• pop(): Returns and removes a random element from the set
• remove(): Removes the element from the set

Example: Adding and removing elements from the Set.

# 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

Note: For more information about Python Sets, refer to Python Set Tutorial.