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 :

def change_cases(s):
  return str(s).upper(), str(s).lower()
 
chrars = {'a', 'b', 'E', 'f', 'a', 'i', 'o', 'U', 'a'}
print("Original Characters:\n",chrars)
 
result = map(change_cases, chrars)
print("\nAfter converting above characters in upper and lower cases\nand 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:

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