Python: Print all unique values in a dictionary

Last update on June 28 2025 12:41:34 (UTC/GMT +8 hours)

20. Print All Distinct Values in a Dictionary

Write a Python program to print all distinct values in a dictionary.

Sample Solution:

Python Code:

# Create a list 'L' containing dictionaries with key-value pairs.
L = [{"V": "S001"}, {"V": "S002"}, {"VI": "S001"}, {"VI": "S005"}, {"VII": "S005"}, {"V": "S009"}, {"VIII": "S007"}]

# Print a message indicating the start of the code section.
print("Original List: ", L)

# Create a set 'u_value' to store unique values found in the dictionaries within the list 'L'.
# Use a set comprehension to iterate through the dictionaries and values and extract unique values.
u_value = set(val for dic in L for val in dic.values())

# Print the unique values stored in the 'u_value' set.
print("Unique Values: ", u_value)

Sample Output:

Original List:  [{'V': 'S001'}, {'V': 'S002'}, {'VI': 'S001'}, {'VI': 'S005'}, {'VII': 'S005'}, {'V': 'S009'},
 {'VIII': 'S007'}]                                                                                            
Unique Values:  {'S009', 'S002', 'S007', 'S005', 'S001'}

For more Practice: Solve these Related Problems:

Write a Python program to extract all unique values from a dictionary where values might be duplicated.
Write a Python program to iterate over a dictionary and add all distinct values to a set, then print the set.
Write a Python program to use set comprehension to output the distinct values of a dictionary.
Write a Python program to merge multiple dictionaries and then display a sorted list of unique values.

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