Python set remove() Method: Remove an Element and Handle KeyError

set.remove(element) removes a matching element from a set and returns None. If the element is not present, Python raises KeyError.

Use discard() when a missing element should be ignored. Both methods modify the original mutable set.

Set order: sets are unordered. Whenever an example prints a set, the displayed element order can differ between runs or Python environments.

my_set={'a','b','c','x','k'}
my_set.remove('x')
print(my_set)

Output is here

{'c', 'a', 'k', 'b'}

In above code x is deleted from my_set.

Removing not available element

This will generate error KeyError

my_set={'a','b','c','x','k'}
my_set.remove('y')

Difference between remove() and discard()

If the element is not present then discard() will not generate error.

my_set={'a','b','c','x','k'}
my_set.discard('y')
print(my_set)

Output

{'x', 'c', 'a', 'k', 'b'}

All Set Methods Questions with solutions on set discard()

tuple set Dictionary Python- Tutorials

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