Python: Combinations of key-value pairs in a given dictionary

Last update on December 21 2024 07:28:34 (UTC/GMT +8 hours)

Write a Python program to get all combinations of key-value pairs in a given dictionary.

Visual Presentation:

Sample Solution:

Python Code:

# Import the 'itertools' module to use its combination functions.
import itertools

# Define a function 'test' that takes a dictionary 'dictt' as an argument.
def test(dictt):
    # Generate all combinations of key-value pairs in the dictionary.
    # Convert each combination into a dictionary and return a list of dictionaries.
    result = list(map(dict, itertools.combinations(dictt.items(), 2)))
    return result

# Create a dictionary 'students' where the keys are grades ('V', 'VI', 'VII') and the values are lists of integers.
students = {'V': [1, 4, 6, 10], 'VI': [1, 4, 12], 'VII': [1, 3, 8]}

# Print a message indicating the start of the code section and the original dictionary.
print("\nOriginal Dictionary:")
print(students)

# Print a message indicating the purpose and generate all combinations of key-value pairs for the 'students' dictionary using the 'test' function.
print("\nCombinations of key-value pairs of the said dictionary:")
print(test(students))

# Create another dictionary 'students' with different values.
students = {'V': [1, 3, 5], 'VI': [1, 5]}

# Print a message indicating the start of the code section and the original dictionary.
print("\nOriginal Dictionary:")
print(students)

# Print a message indicating the purpose and generate all combinations of key-value pairs for the new 'students' dictionary using the 'test' function.
print("\nCombinations of key-value pairs of the said dictionary:")
print(test(students))

Sample Output:

Original Dictionary:
{'V': [1, 4, 6, 10], 'VI': [1, 4, 12], 'VII': [1, 3, 8]}

Combinations of key-value pairs of the said dictionary:
[{'V': [1, 4, 6, 10], 'VI': [1, 4, 12]}, {'V': [1, 4, 6, 10], 'VII': [1, 3, 8]}, {'VI': [1, 4, 12], 'VII': [1, 3, 8]}]

Original Dictionary:
{'V': [1, 3, 5], 'VI': [1, 5]}

Combinations of key-value pairs of the said dictionary:
[{'V': [1, 3, 5], 'VI': [1, 5]}]

Flowchart:

Python Code Editor:

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