Emit a SHA512 shadow string for /etc/shadow

emit-sha512.py

#!/usr/bin/python
import crypt
import getpass
import re
import sys

sys.dont_write_bytecode = True

while True:
    password1 = getpass.getpass(prompt='Enter a password string to hash in SHA-512: ')
    password2 = getpass.getpass(prompt='Enter the password again to confirm: ')

    if password1 != password2:
        print("Passwords do not match. Please try again.")
        continue

    if len(password1) < 8:
        print("Password must be at least 8 characters long.")
        continue

    if not re.search("[a-z]", password1):
        print("Password must contain at least one lowercase letter.")
        continue

    if not re.search("[A-Z]", password1):
        print("Password must contain at least one uppercase letter.")
        continue

    if not re.search("[0-9]", password1):
        print("Password must contain at least one number.")
        continue

    if not re.search("[!@#$_%^&*(),.?\":{}|<>]", password1):
        print("Password must contain at least one symbol.")
        continue

    break

print(crypt.crypt(password1, crypt.mksalt(crypt.METHOD_SHA512)))
sys.exit(0)