Python Exercise: Print all unique values in a dictionary

Python dictionary: Exercise-20 with Solution

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

Sample Solution:-

Python Code:

L = [{"V":"S001"}, {"V": "S002"}, {"VI": "S001"}, {"VI": "S005"}, {"VII":"S005"}, {"V":"S009"},{"VIII":"S007"}]
print("Original List: ",L)
u_value = set( val for dic in L for val in dic.values())
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'}  

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to combine two dictionary adding values for common keys.
Next: Write a Python program to create and display all combinations of letters, selecting each letter from a different key in a dictionary.

What is the difficulty level of this exercise?

Test your Python skills with w3resource's quiz

Python: Tips of the Day

Python: Convert byte to a string?

You need to decode the bytes object to produce a string:

>>> b"abcde"

# utf-8 is used here because it is a very common encoding, but you
# need to use the encoding your data is actually in.
>>> b"abcde".decode("utf-8") 

Ref: https://bit.ly/2YuvClI