Generate random password

generator.py

import numpy as np

uppers = "QWERTYUIOPASDFGHJKLZXCVBNM"
lowers = "qwertyuiopasdfghjklzxcvbnm"
digits = list(map(str, range(10)))
specials = "!@#$%&*()+-/"
# specials = "!+-()#"
# specials = ""

chars = set(uppers)
chars |= set(lowers)
chars |= set(digits)
chars |= set(specials)
chars = tuple(chars)

def has_upper(password, quant=1):
    counter = 0
    for letter in set(password):
        if letter in uppers:
            counter += 1
    return counter >= quant or counter == len(uppers)

def has_lower(password, quant=1):
    counter = 0
    for letter in set(password):
        if letter in lowers:
            counter += 1
    return counter >= quant or counter == len(lowers)

def has_digit(password, quant=1):
    counter = 0
    for letter in set(password):
        if letter in digits:
            counter += 1
    return counter >= quant or counter == len(digits)

def has_special(password, quant=1):
    counter = 0
    for letter in set(password):
        if letter in specials:
            counter += 1
    return counter >= quant or counter == len(specials)

lenght = 20
while True:
    password = []
    for i in range(lenght):
        index = np.random.randint(len(chars))
        char = chars[index]
        password.append(char)
    password = "".join(password)
    # print(password)
    if not has_upper(password, lenght//5):
        continue
    if not has_lower(password, lenght//5):
        continue
    if not has_digit(password, lenght//5):
        continue
    if not has_special(password, lenght//5):
        continue
    break
    
print(password)