[python]Is the string uppercase?

https://www.codewars.com/kata/56cd44e1aa4ac7879200010b/train/python

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내 코드

isupper() 함수로 문제를 풀 수 있다.

# My Code
def is_uppercase(inp):
    for i in inp:
        if i.islower():
            return False
    return True
 
def is_uppercase1_(inp):
    return str.isupper(inp)
 
if __name__=='__main__':
    answer = is_uppercase("c")
    print(answer)
    answer = is_uppercase("C")
    print(answer)
    answer = is_uppercase("hello I Am DONALD")
    print(answer)
    answer = is_uppercase("HELLO I AM DONALD")
    print(answer)