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Set operation solution in Clear category for All Upper I by Ken_w
def is_all_upper(text: str) -> bool:
import string
return False if set(text) & set(string.ascii_lowercase) else True
if __name__ == '__main__':
print("Example:")
print(is_all_upper('ALL UPPER'))
# These "asserts" are used for self-checking and not for an auto-testing
assert is_all_upper('ALL UPPER') == True
assert is_all_upper('all lower') == False
assert is_all_upper('mixed UPPER and lower') == False
assert is_all_upper('') == True
print("Coding complete? Click 'Check' to earn cool rewards!")
Jan. 12, 2021