main.py

# Resolve the problem!!
import string
import random

SYMBOLS = list('!"#$%&\'()*+,-./:;?@[]^_`{|}~')
UPPERCASES = list('ABCDEFGHIJKLMNOPQRSTUVWXYZ')
LOWERCASES = list('abcdefghijklmnopqrstuvwxyz')
DIGITS = list('0123456789')

def generate_password():
    """
        1. Create a list with a random lenght between 8 and  16, filled with x
        2. Fill the list with every type of characters radomly, diff. even and odd
        3. Because the list was filled with an even-odd index order, it must be shuffle randomly 
    """
    
    length = random.randint(8, 16)
    password = list('x' * length)

    i = 0
    while i < length/2:
        if i%2 == 0:
            password[i] = SYMBOLS[random.randint(0, len(SYMBOLS)-1)]
            i += 1
        else:
            password[i] = DIGITS[random.randint(0, len(DIGITS)-1)]
            i += 1

    while i < length:
        if i%2 == 0:
            password[i] = UPPERCASES[random.randint(0, len(UPPERCASES)-1)]
            i += 1
        else:
            password[i] = LOWERCASES[random.randint(0, len(LOWERCASES)-1)]
            i += 1 

    random.shuffle(password)
    str_pass = ''

    return str_pass.join(password)


def validate(password):

    if len(password) >= 8 and len(password) <= 16:
        has_lowercase_letters = False
        has_numbers = False
        has_uppercase_letters = False
        has_symbols = False

        for char in password:
            if char in string.ascii_lowercase:
                has_lowercase_letters = True
                break

        for char in password:
            if char in string.ascii_uppercase:
                has_uppercase_letters = True
                break

        for char in password:
            if char in string.digits:
                has_numbers = True
                break

        for char in password:
            if char in SYMBOLS:
                has_symbols = True
                break

        if has_symbols and has_numbers and has_lowercase_letters and has_uppercase_letters:
            return True
    return False


def run():
    password = generate_password()
    if validate(password):
        print('Secure Password')
    else:
        print('Insecure Password')


if __name__ == '__main__':
    run()