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Add additional doctests, fix grammatical errors for maths/perfect_number.py (#12477)

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* Add additional doctests for the perfect number algorithm and fix grammatical errors. Contributes to #9943

* Added newline at End of file

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>
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Joy Khandelwal 2024-12-28 14:21:28 +05:30 committed by GitHub
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commit b5c8fbf2e8
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1 changed files with 14 additions and 5 deletions
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maths/perfect_number.py
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@ -46,17 +46,27 @@ def perfect(number: int) -> bool:
False False
>>> perfect(-1) >>> perfect(-1)
False False
>>> perfect(33550336) # Large perfect number
True
>>> perfect(33550337) # Just above a large perfect number
False
>>> perfect(1) # Edge case: 1 is not a perfect number
False
>>> perfect("123") # String representation of a number
Traceback (most recent call last):
...
ValueError: number must be an integer
>>> perfect(12.34) >>> perfect(12.34)
Traceback (most recent call last): Traceback (most recent call last):
... ...
ValueError: number must an integer ValueError: number must be an integer
>>> perfect("Hello") >>> perfect("Hello")
Traceback (most recent call last): Traceback (most recent call last):
... ...
ValueError: number must an integer ValueError: number must be an integer
""" """
if not isinstance(number, int): if not isinstance(number, int):
raise ValueError("number must an integer") raise ValueError("number must be an integer")
if number <= 0: if number <= 0:
return False return False
return sum(i for i in range(1, number // 2 + 1) if number % i == 0) == number return sum(i for i in range(1, number // 2 + 1) if number % i == 0) == number
@ -70,8 +80,7 @@ if __name__ == "__main__":
try: try:
number = int(input("Enter a positive integer: ").strip()) number = int(input("Enter a positive integer: ").strip())
except ValueError: except ValueError:
msg = "number must an integer" msg = "number must be an integer"
print(msg)
raise ValueError(msg) raise ValueError(msg)
print(f"{number} is {'' if perfect(number) else 'not '}a Perfect Number.") print(f"{number} is {'' if perfect(number) else 'not '}a Perfect Number.")