Python discard()

The discard() function in python helps to remove or discard the specified element from the set only if the element is present.

s.discard(element) #where element may be a integer,string etc.
 

discard() Parameters:

The discard() function takes a single parameter. This method is similar to remove() method, the difference is that the remove() method raises an error if the given element is not present in the set, but discard() will not. 

discard() Return Value

The discard() method doesn't return anything. It just updates the set by removing specified element from the set.

Examples of discard() method in Python

alphabets = {'a', 'b', 'c', 'd'}

alphabets .discard(c)
print('Alphabets = ', alphabets )

numbers.discard(e)
print('Alphabets = ', alphabets )
 

Output:

Alphabets =  {'a', 'b', 'd'}
Alphabets =  {'a', 'b', 'd'}

alphabets = {'a', 'b', 'c', 'd'}
#Returns none
print(alphabets .discard(c))
print('Alphabets = ', alphabets )
 

Output:

None
Alphabets = {'a', 'b', 'd'}