script.py

import random
import string
from string import ascii_letters, digits, punctuation


def generate(lenght_min):
    characters = string.ascii_letters + string.digits + string.punctuation
    password = ""
    criteria = False
    number = False
    special_character = False
    letters = False

    while not criteria or len(password) < lenght_min:
        new_char = random.choice(characters)
        password += new_char

        if new_char in digits:
            number = True
        elif new_char in punctuation:
            special_character = True
        elif new_char in ascii_letters:
            letters = True


        criteria = number and special_character and letters

    return password


print("Choose a minimum lenght of the password:")

pwd = generate(int(input()))
print(pwd)