Help please!

import random
import time

LOWERCASE_CHARS = tuple(map(chr, range(ord('a'), ord('z')+1)))
UPPERCASE_CHARS = tuple(map(chr, range(ord('A'), ord('Z')+1)))
DIGITS = tuple(map(str, range(0, 10)))
SPECIALS = ('!', '@', '#', '$', '%', '^', '&', '*')

SEQUENCE = (LOWERCASE_CHARS,
            UPPERCASE_CHARS,
            DIGITS,
            SPECIALS,
            )

def generate_random_password(total, sequences):
    r = _generate_random_number_for_each_sequence(total, len(sequences))

    password = []
    for (population, k) in zip(sequences, r):
        n = 0
        while n < k:
            position = random.randint(0, len(population)-1)
            password += population[position]
            n += 1
    random.shuffle(password)

    while _is_repeating(password):
        random.shuffle(password)

    return ''.join(password)

def _generate_random_number_for_each_sequence(total, sequence_number):
    current_total = 0
    r = []
    for n in range(sequence_number-1, 0, -1):
        current = random.randint(1, total - current_total - n)
        current_total += current
        r.append(current)
    r.append(total - sum(r))
    random.shuffle(r)

    return r

def _is_repeating(password):
    n = 1
    while n < len(password):
        if password[n] == password[n-1]:
            return True
        n += 1
    return False

intnum = tuple(map(str, range(1, 1001)))
passamount = str(intnum[-1])
passwordgenerator = generate_random_password(random.randint(6, 30), SEQUENCE)
charcount = len(passwordgenerator)

if __name__ == '__main__':
    f = open("generated_passwords.txt", "w")
    f.write("" + passamount + " strong password(s) were generated.\n\n")
    for num in intnum:
        f.write("[" + str(charcount) + " | RANDOM." + num + "]: " + passwordgenerator + "\n")
    f.write("\nSave the password you want!")
    print("Generated " + passamount + " random passwords in \'generated_passwords.txt\'.")
    f.close()