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Python Dictionary | popitem method
schedule Aug 11, 2023
Last updated local_offer
Tags 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.
Published by Isshin Inada
Edited by 0 others
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Official Python Documentation
https://docs.python.org/3/library/stdtypes.html#dict.popitem
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