Python Password Generator Project

"""Generate secure passwords with Python's secrets module."""

import secrets
import string


def read_length():
    while True:
        try:
            length = int(input("Password length (12 or more): ").strip())
            if length < 12:
                raise ValueError
            return length
        except ValueError:
            print("Enter a whole number of at least 12.")


def make_password(length):
    """Create a password with upper/lowercase letters, digits, and symbols."""
    symbols = "!@#$%^&*?-_"
    required = [
        secrets.choice(string.ascii_lowercase),
        secrets.choice(string.ascii_uppercase),
        secrets.choice(string.digits),
        secrets.choice(symbols),
    ]
    alphabet = string.ascii_letters + string.digits + symbols
    password = required + [secrets.choice(alphabet) for _ in range(length - len(required))]
    secrets.SystemRandom().shuffle(password)
    return "".join(password)


def main():
    print("Secure Password Generator")
    print("Each password includes uppercase, lowercase, number, and symbol characters.\n")
    while True:
        length = read_length()
        print(f"\nGenerated password: {make_password(length)}\n")
        again = input("Generate another? (y/n): ").strip().lower()
        if again not in {"y", "yes"}:
            print("Keep the password private and store it in a trusted password manager.")
            break


if __name__ == "__main__":
    main()