simple_password_generator

import random
import string

# checking the input
while True:
    pass_len = input("Please enter a whole number equal to 8 or higher: ")
    try:
        if int(pass_len) >= 8:
            pass_len = int(pass_len)
            break
    except ValueError:
        print("Invalid input.")

symbols_categories = [string.digits]

# defining complexity
pass_type = input("Do you want the password to have capital letters? (y/n): ")
if pass_type in "YesyesYy":
    symbols_categories.append(string.ascii_uppercase)
pass_type = input("Do you want the password to have lower letters? (y/n): ")
if pass_type in "YesyesYy":
    symbols_categories.append(string.ascii_lowercase)
pass_type = input("Do you want the password to have symbols? (y/n): ")
if pass_type in "YesyesYy":
    symbols_categories.append(string.punctuation)

number_of_symbols = pass_len // len(symbols_categories)
number_of_remains = pass_len % len(symbols_categories)
generated_password = str()
final_pass = str()

# minimum symbols of each category
for _ in range(number_of_symbols):
    for n in range(len(symbols_categories)):
        generated_password += random.choice(symbols_categories[n])

# adding random symbols of random category to fill the password
for _ in range(number_of_remains):
    category = random.choice(symbols_categories)
    generated_password += random.choice(category)

# shuffling the password
for i in range(pass_len):
    symbol = random.choice(generated_password)
    generated_password = generated_password.replace(symbol, "", 1)
    final_pass += symbol

if len(symbols_categories) >=3:
    print('Here is your very secure password: ')
elif 3> len(symbols_categories) >= 2:
    print('Here is your pretty secure password: ')
elif len(symbols_categories) = 1:
    print('Here is your basic password: ')
print(final_pass)