Q:

Python program to randomize (shuffle) values of dictionary

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mahmoud2506
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2022-05-22
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A dictionary contains the pair of the keys & values (represents key : value), a dictionary is created by providing the elements within the curly braces ({}), separated by the commas. 

We have a dictionary consisting of some key-value pairs. We will shuffle the values i.e. the position of keys will be constant but the values attached to the key will be changed randomly.

Example:

Original dictionary:
{'Indore': 2, 'Delhi' : 5, 'Mumbai' : 1, 'Manali' : 3, 'Patna': 8}

Shuffled dictionary:
{'Indore': 1, 'Delhi' : 8, 'Mumbai' : 5, 'Manali' : 2, 'Patna': 3}
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mahmoud2506
2022-05-22
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Algorithm:

  1. Convert dictionary into list of values
  2. Randomize the list
  3. Map the values back with the key values of the dictionary
  4. Convert it to a dictionary
  5. Print the dictionary

Program to shuffle values of dictionary in Python

# Python program to shuffle dictionary Values...

# Importing shuffle method from random 
from random import shuffle 

# Initialising dictionary
myDict = {'Scala': 2, 'Javascript': 5, 'Python': 8, 'C++': 1, 'Java': 4}

# Shuffling Values... 
valList = list(myDict.values())
shuffle(valList)
mappedPairs = (zip(myDict, valList))
shuffledDict = dict(mappedPairs)

# Printing the dictionaries...
print("Initial dictionary = ", end = " ")
print(myDict)
print("Shuffled dictionary = ", end = " ")
print(shuffledDict)

Output:

RUN 1:
Initial dictionary =  {'Java': 4, 'Scala': 2, 'Python': 8, 'C++': 1, 'Javascript': 5}
Shuffled dictionary =  {'Javascript': 4, 'Scala': 1, 'Java': 2, 'C++': 8, 'Python': 5}

RUN 2:
Initial dictionary =  {'C++': 1, 'Scala': 2, 'Javascript': 5, 'Java': 4, 'Python': 8}
Shuffled dictionary =  {'C++': 8, 'Scala': 1, 'Javascript': 2, 'Java': 5, 'Python': 4}

RUN 3:
Initial dictionary =  {'C++': 1, 'Javascript': 5, 'Scala': 2, 'Java': 4, 'Python': 8}
Shuffled dictionary =  {'C++': 8, 'Javascript': 4, 'Scala': 2, 'Python': 1, 'Java': 5}

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