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Python: Count the frequency in a given dictionary

Python dictionary: Exercise-61 with Solution

Write a Python program to count the frequency in a given dictionary.

Sample Solution:

Python Code:

from collections import Counter
def test(dictt):    
    result = Counter(dictt.values())
    return result    

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

print("\nOriginal Dictionary:")
print(dictt)
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})

Pictorial Presentation:

Python Dictionary: Count the frequency in a given dictionary.

Flowchart:

Flowchart: Count the frequency in a given dictionary.

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Previous: Write a Python program to find shortest list of values with the keys in a given dictionary
Next: Write a Python program to extract values from a given dictionaries and create a list of lists from those values.

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m