Python: Count the frequency in a given dictionary

Last update on June 28 2025 12:39:47 (UTC/GMT +8 hours)

61. Count Frequency of a Dictionary's Values

Write a Python program to count the frequency of a dictionary.

Visual Presentation:

Sample Solution:

Python Code:

# Import the 'Counter' class from the 'collections' module.
from collections import Counter

# Define a function 'test' that takes a dictionary 'dictt' as an argument.
def test(dictt):
    # Use the 'Counter' class to count the frequency of values in the dictionary.
    result = Counter(dictt.values())
    
    # Return the result as a Counter object.
    return result

# Create a dictionary 'dictt' where the keys represent grades ('V', 'VI', etc.) and the values are integers.
dictt = {
    'V': 10,
    'VI': 10,
    'VII': 40,
    'VIII': 20,
    'IX': 70,
    'X': 80,
    'XI': 40,
    'XII': 20
}

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

# Print a message indicating the purpose and generate a frequency count of values in the 'dictt' dictionary using the 'test' function.
print("\nCount the frequency of the said dictionary:")
print(test(dictt)) 

Sample Output:

Original Dictionary:
{'V': 10, 'VI': 10, 'VII': 40, 'VIII': 20, 'IX': 70, 'X': 80, 'XI': 40, 'XII': 20}

Count the frequency of the said dictionary:
Counter({10: 2, 40: 2, 20: 2, 70: 1, 80: 1})

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to count the frequency of each value in a dictionary using collections.Counter.
• Write a Python program to iterate over dictionary values and build a new dictionary mapping each value to its occurrence count.
• Write a Python program to use dictionary comprehension to generate a frequency dictionary from the values of another dictionary.
• Write a Python program to implement a function that returns the frequency distribution of dictionary values.

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