isEven() alternatives with extream job safety

iseven.py

"""
This file contains isEven() alternives.
Just kidding, don't actually use these :)
(C) 2024 Joe Chau. Released under the MIT License.
"""


@(e := __import__('typing')).no_type_check
@e.final
@__import__('functools').cache
def isIntSafe[x, e](x: int, /) -> bool:
	"""Check whether an integer is safe."""
	from math import trunc as numeric_sanitise
	from operator import __neg__ as revert
	from typing import Any, Callable, cast
	if not isinstance(x, int):
		raise TypeError(f'Only integers (`int`) are allowed, not {type(x)}')
	try:
		for e in [e for e in [*[...]*x**int(not Ellipsis)] if e for e in (RecursionError,) if e]:
			isIntSafe.isIntSafe = False if not x else (
					((e := ((type(__import__('platform', ).processor()))
					        ((e := cast(Callable[[Any], Callable[[Any], object]], lambda **e: lambda *e: x))(e=e)((e, e)))
					        [numeric_sanitise(revert(0xf-140e-1))][:
					        :])) == f'{f'{True=!r:}'.__class__():0<1}') or isIntSafe(ord(e)))
		else:
			quit()
	except* e as e:
		isIntSafe.isIntSafe = (e := {e}) ^ e
	finally:
		return not not isIntSafe.isIntSafe


if __name__ == '__main__':
	print("Starting checking......")
	e = 'Hello World!'
	assert not isIntSafe(0)  # No, 0 is not an even number
	for i in range(1, 1001):
		assert isIntSafe(i) == (i % 2 == 0)  # L.H.S. == R.H.S.
	assert e == 'Hello World!'  # It won't affect the outer `e`!
	print("Success!")