popitem(): removes and returns the last inserted key-value pair from a dictionary as a tuple

my_dict={'a':'One','b':'Two','c':'Three'}
x=my_dict.popitem()
print(x)
print(my_dict)

('c', 'Three')
{'a': 'One', 'b': 'Two'}

my_dict={'a':'One','b':'Two','c':'Three'}
my_dict['d']='Four'
x=my_dict.popitem()
print(x)
print(my_dict)

('d', 'Four')
{'a': 'One', 'b': 'Two', 'c': 'Three'}

my_dict={'a':'One','b':'Two','c':'Three'}
x=my_dict.popitem()
print(type(x))

<class 'tuple'>

Example: Handling Empty Dictionary

my_dict = {}
try:
    my_dict.popitem()
except KeyError as e:
    print(f"Error: {e}")

Error: 'popitem(): dictionary is empty'

Example: Removing Items Until Dictionary is Empty

my_dict = {'a': 1, 'b': 2, 'c': 3}
while my_dict:
    key, value = my_dict.popitem()
    print(f"Removed: {key} -> {value}")
print("Dictionary is now empty.")

Removed: c -> 3
Removed: b -> 2
Removed: a -> 1
Dictionary is now empty.

Example: LIFO Operation

stack = {'first': 1, 'second': 2, 'third': 3}
last_in = stack.popitem()
print(f"Last in, first out: {last_in}")

Last in, first out: ('third', 3)

Example 5: Handling Nested Dictionaries

nested_dict = {'first': {'a': 1}, 'second': {'b': 2}}
outer_key, inner_dict = nested_dict.popitem()
print(f"Removed outer item: {outer_key} -> {inner_dict}")
inner_key, inner_value = inner_dict.popitem()
print(f"Removed inner item: {inner_key} -> {inner_value}")

Removed outer item: second -> {'b': 2}
Removed inner item: b -> 2

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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