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master
strings/is_isogram.py
30 строк
872 B
M3talM0nk3y
Added function that checks if a string is an isogram (#7608)
26 окт 2022, 06:31
Не верифицирован
26 окт 2022, 06:31
68f6e9a
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""" wiki: https://en.wikipedia.org/wiki/Heterogram_(literature)#Isograms """ def is_isogram(string: str) -> bool: """ An isogram is a word in which no letter is repeated. Examples of isograms are uncopyrightable and ambidextrously. >>> is_isogram('Uncopyrightable') True >>> is_isogram('allowance') False >>> is_isogram('copy1') Traceback (most recent call last): ... ValueError: String must only contain alphabetic characters. """ if not all(x.isalpha() for x in string): raise ValueError("String must only contain alphabetic characters.") letters = sorted(string.lower()) return len(letters) == len(set(letters)) if __name__ == "__main__": input_str = input("Enter a string ").strip() isogram = is_isogram(input_str) print(f"{input_str} is {'an' if isogram else 'not an'} isogram.")