Python Dictionary popitem() Method
The dict.popitem() method removes and returns a tuple of (key, value) pair from the dictionary. Pairs are returned in Last In First Out (LIFO) order.
Syntax:
dict.popitem()Parameters:
No parameters.
Return Value:
Removes and returns the last inserted key-value pair in the dictionary.
The following example demonstrates the dict.popitem() method.
Example: Get Last Key-Value
romanNums = {'I':1, 'II':2, 'III':3 }
print(romanNums.popitem())
print(romanNums.popitem())
print(romanNums.popitem())
print(romanNums)
print(romanNums.popitem()) # throws error
Output
('III', 3)
('II', 2)
('I', 1)
{}
KeyError: 'popitem(): dictionary is empty'
In the above example, each call of romanNums.popitem() removes and returns a key-value pair. Calling the popitem() method on an empty dictionary will throw a KeyError.