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How does set discard() work in Python?

Hassan Ahmed

The built-in discard() method in Python is used to remove a specific item from a set.

It is important to note that this method differs from the remove() method, which does the same thing. However, unlike remove(), discard() will not raise an error if the specified item does not exist in the set that calls the method.

Syntax

set.discard(item)

Parameters and return value

This method requires a value that will be removed from the set to be passed as a parameter.

The return value of discard() is None.

Example 1

x = {'Cats', 'Dogs', 'Elephants', 'Seals'}

x.discard('Cats')
print(x)

Example 2

#Passing a value that does not exist in the set

x = {'Cats', 'Dogs', 'Elephants', 'Seals'}

x.discard('Tigers')
print(x)

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