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"""https://en.wikipedia.org/wiki/Atbash"""

import string

def atbash_slow(sequence: str) -> str:

"""

>>> atbash_slow("ABCDEFG")

'ZYXWVUT'

>>> atbash_slow("aW;;123BX")

'zD;;123YC'

"""

output = ""

for i in sequence:

extract = ord(i)

if 65 <= extract <= 90:

output += chr(155 - extract)

elif 97 <= extract <= 122:

output += chr(219 - extract)

else:

output += i

return output

def atbash(sequence: str) -> str:

"""

>>> atbash("ABCDEFG")

'ZYXWVUT'

>>> atbash("aW;;123BX")

'zD;;123YC'

"""

letters = string.ascii_letters

letters_reversed = string.ascii_lowercase[::-1] + string.ascii_uppercase[::-1]

return "".join(

letters_reversed[letters.index(c)] if c in letters else c for c in sequence

)

def benchmark() -> None:

"""Let's benchmark our functions side-by-side..."""

from timeit import timeit

print("Running performance benchmarks...")

setup = "from string import printable ; from __main__ import atbash, atbash_slow"

print(f"> atbash_slow(): {timeit('atbash_slow(printable)', setup=setup)} seconds")

print(f"> atbash(): {timeit('atbash(printable)', setup=setup)} seconds")

if __name__ == "__main__":

for example in ("ABCDEFGH", "123GGjj", "testStringtest", "with space"):

print(f"{example} encrypted in atbash: {atbash(example)}")

benchmark()

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