w3resource

Python: Convert all the characters in uppercase and lowercase and eliminate duplicate letters from a sequence

Python map: Exercise-6 with Solution

Write a Python program to convert all the characters into uppercase and lowercase and eliminate duplicate letters from a given sequence. Use the map() function.

Sample Solution:

Python Code :

# Define a function named change_cases that converts a character to its upper and lower cases
def change_cases(s):
    return str(s).upper(), str(s).lower()

# Create a set named 'chrars' containing characters
chrars = {'a', 'b', 'E', 'f', 'a', 'i', 'o', 'U', 'a'}

# Print the original set of characters
print("Original Characters:\n", chrars)

# Use the map function to apply the change_cases function to each character in 'chrars'
result = map(change_cases, chrars)

# Print a message indicating the operation to be performed
print("\nAfter converting above characters in upper and lower cases\nand eliminating duplicate letters:")

# Print the result of the map operation as a set, eliminating duplicate letters
print(set(result))

Sample Output:

Original Characters:
 {'f', 'b', 'U', 'i', 'o', 'E', 'a'}

After converting above characters in upper and lower cases
and eliminating duplicate letters:
{('U', 'u'), ('O', 'o'), ('A', 'a'), ('B', 'b'), ('F', 'f'), ('I', 'i'), ('E', 'e')}

Python Code Editor:

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

Previous: Write a Python program to square the elements of a list using map() function.
Next: Write a Python program to add two given lists and find the difference between lists. Use map() function.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://w3resource.com/python-exercises/map/python-map-exercise-6.php