Python OrderedDict Key reordering

Last update on April 02 2025 05:29:55 (UTC/GMT +8 hours)

5. Move Key to End

Write a Python program to create an OrderedDict with the following key-value pairs:
'Laptop': 40
'Desktop': 45
'Mobile': 35
'Charger': 25
Now move the 'Desktop' key to the end of the dictionary and print the updated contents.

Sample Solution:

Code:

from collections import OrderedDict

# Create an OrderedDict with the given key-value pairs
ordered_dict = OrderedDict([
    ('Laptop', 40),
    ('Desktop', 45),
    ('Mobile', 35),
    ('Charger', 25)
])

print("Original OrderedDict:")
print(ordered_dict)

# Move the 'Desktop' key to the end
print("\nMove the 'Desktop' key to the end")
ordered_dict.move_to_end('Desktop')

# Print the updated OrderedDict
print("\nUpdated OrderedDict:")
print(ordered_dict)

Output:

Original OrderedDict:
OrderedDict([('Laptop', 40), ('Desktop', 45), ('Mobile', 35), ('Charger', 25)])

Move the 'Desktop' key to the end

Updated OrderedDict:
OrderedDict([('Laptop', 40), ('Mobile', 35), ('Charger', 25), ('Desktop', 45)])

In this exercise above, the move_to_end() method of the OrderedDict is used to move the 'Desktop' key to the end of the dictionary, effectively changing its position within the dictionary.

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to create an OrderedDict with several key-value pairs and then move a specified key to the end using move_to_end().
• Write a Python script to reorder an OrderedDict by moving multiple specified keys to the end and then print the new ordering.
• Write a Python program to simulate reordering of an OrderedDict by removing a key and re-inserting it at the end.
• Write a Python function that takes an OrderedDict and a key, moves that key to the end, and returns the updated OrderedDict.

Python Code Editor :

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