Python Dictionary popitem() method

Python Dictionary popitem() method

The dictionary.popitem() method in Python removes the item that was last inserted into the dictionary.

Syntax

dictionary.popitem()

Parameter

NA

Return

This method returns an arbitrary element (key, value) pair from the given dictionary or raises a KeyError if the specified dictionary is null.

Example 1

 # Python program explaining
 # the dictionary.popitem() method
 # initialising the dictionary
 fruits = {
  "banana" : "apple",
   "orange": "mango",
   "grapes": 5
 }
 # printing the Dictionary
 print("Dictionary:",fruits)
 # removing the last element from the given dictionary.
 leftFruit=fruits.popitem()
 print("My final lists of fruits are\n", fruits) 

Output

 Dictionary: {'grapes': 5, 'orange': 'mango', 'banana': 'apple'}
 My final lists of fruits are
  {'orange': 'mango', 'banana': 'apple'} 

Example 2

 # Python program explaining
 # the dictionary.popitem() method
 #initializing the dictionary
 dictionary = {1: "numbers", 2: "digits", 3: "alphabets", 4:"Symbols",4:"Special characters"}
 print("Actual dictionary: ",dictionary)
 # pop the last element
 dictionary.popitem()
 print('Remaining dictionary: ', dictionary)
 # pop the last element
 dictionary.popitem()
 print('Remaining dictionary: ', dictionary)
 # pop the last element
 dictionary.popitem()
 print('Remaining dictionary: ', dictionary)
 # pop the last element
 dictionary.popitem()
 print('Remaining dictionary: ', dictionary)
 # pop the last element
 dictionary.popitem()
 print('Remaining dictionary: ', dictionary)
 # popping the item when the dictionary is empty
 # will return a keyerror
 dictionary.popitem()
 print('Remaining dictionary: ', dictionary) 

Output

 Actual dictionary:  {1: 'numbers', 2: 'digits', 3: 'alphabets', 4: 'Special characters'}
 Remaining dictionary:  {2: 'digits', 3: 'alphabets', 4: 'Special characters'}
 Remaining dictionary:  {3: 'alphabets', 4: 'Special characters'}
 Remaining dictionary:  {4: 'Special characters'}
 Remaining dictionary:  {}
 Traceback (most recent call last):
   File "main.py", line 23, in <module>
     dictionary.popitem()
 KeyError: 'popitem(): dictionary is empty'