python-workshop-4/day2/swap_case.py at master · anishLearnsToCode/python-workshop-4 · GitHub

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def swapCase(string):
    # result = ''
    # for character in string:
    #     if character.isupper():
    #         result += character.lower()
    #     else:
    #         result += character.upper()

    return ''.join([character.lower() if character.isupper() else character.upper() for character in string])


print(swapCase('hello'))
print(swapCase('HEllo'))
print(swapCase('Hello World'))