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strings/capitalize.py
32 строки
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Saurabh Mahapatra
Update capitalize.py (#10573)
26 окт 2023, 11:25
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26 окт 2023, 11:25
ade2837
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from string import ascii_lowercase, ascii_uppercase def capitalize(sentence: str) -> str: """ Capitalizes the first letter of a sentence or word. >>> capitalize("hello world") 'Hello world' >>> capitalize("123 hello world") '123 hello world' >>> capitalize(" hello world") ' hello world' >>> capitalize("a") 'A' >>> capitalize("") '' """ if not sentence: return "" # Create a dictionary that maps lowercase letters to uppercase letters # Capitalize the first character if it's a lowercase letter # Concatenate the capitalized character with the rest of the string lower_to_upper = dict(zip(ascii_lowercase, ascii_uppercase)) return lower_to_upper.get(sentence[0], sentence[0]) + sentence[1:] if __name__ == "__main__": from doctest import testmod testmod()