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Python/strings/reverse_letters.py
Tithi Joshi 049a34d62b Refine docstring and simplify reverse_letters implementation (#14205)
* docs: refine docstring and simplify reverse_letters implementation

Updated the docstring for clarity and improved the logic for reversing words.

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* Update reverse_letters.py

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2026-03-09 07:30:39 +03:00

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Python

def reverse_letters(sentence: str, length: int = 0) -> str:
"""
Reverse all words that are longer than the given length of characters in a sentence.
If ``length`` is not specified, it defaults to 0.
>>> reverse_letters("Hey wollef sroirraw", 3)
'Hey fellow warriors'
>>> reverse_letters("nohtyP is nohtyP", 2)
'Python is Python'
>>> reverse_letters("1 12 123 1234 54321 654321", 0)
'1 21 321 4321 12345 123456'
>>> reverse_letters("racecar")
'racecar'
"""
return " ".join(
word[::-1] if len(word) > length else word for word in sentence.split()
)
if __name__ == "__main__":
import doctest
doctest.testmod()
print(reverse_letters("Hey wollef sroirraw"))