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Python Dictionary | popitem method

Operations
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Dictionary Operations
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Documentation
schedule Jul 1, 2022
Last updated
local_offer Python
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Python's dict.popitem() method removes the key/value pair that was last inserted into the dictionary and returns it as a tuple. Prior to version 3.7, dict.popitem() would remove an arbitrary key/value pair.

Parameters

No parameters.

Return value

Returns the key/value pair that was last inserted into the dictionary as a tuple.

If the dictionary is empty, a KeyError is raised.

Examples

Basic usage

To remove the last inserted key/value pair from fruits and return it as a tuple:

fruits = {'apple': 'red', 'lemon': 'yellow', 'watermelon': 'green'}
fruits.popitem()
('watermelon', 'green')

KeyError

To remove the last inserted key/value pair from fruits and return it:

fruits = {}
fruits.popitem()
KeyError: 'popitem(): dictionary is empty'

KeyError is raised as the fruits dictionary is empty, hence we have no more key/value pairs to remove.

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Published by Isshin Inada
Edited by 0 others
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