"""
Version B of the password example: the correct one.

Companion to "LLMs Can Write Code, but Cannot Read Your Mind"
https://hed.am/briefs/llms-can-write-code-but-cannot-read-your-mind/

    python3 password-secrets.py

The only difference from password-random.py is the import. `secrets` draws on
the operating system's cryptographic randomness (getrandom, /dev/urandom, or
the platform equivalent), which is designed so that seeing any amount of
previous output gives you no practical way to work out the next value.

`secrets.choice` also avoids the modulo bias that a naive `% len(alphabet)`
introduces when the alphabet does not divide the generator's range evenly.
Neither property is visible from the outside: both files print sixteen
scrambled characters, and no test anyone would think to write tells them
apart.
"""

# Version B - looks the same, actually correct
import secrets, string

ALPHABET = string.ascii_letters + string.digits


def password(n: int = 16) -> str:
    return ''.join(secrets.choice(ALPHABET) for _ in range(n))


print(password())