Py Password Brute Force List Generator v0.3

# -*- coding: utf-8 -*-
"""
Created on Tue Jan 28 22:25:17 2020

@author: david
"""
import os

debug = False

#File setup
root_dir = os.path.dirname(os.path.realpath(__file__))
f = open(root_dir+"\\passwords.txt","w+")

def get_number_between(low,high):
    """
    Takes two numbers.
    Asks the user to enter a number between those numbers (inclusive).
    Refuses any invalid entries.
    Returns the correctly entered number.
    """
    number = -999
    while (number < low) or (number > high):
        try:
            print("Enter a number between " + str(low) + " and " + str(high)
                    + " inclusive.")
            number = int(input())
        except ValueError:
            number = -999
    return number


print("Enter minimum password length:")
min_pass_length = get_number_between(1,20)

print("Enter maximum password length:")
max_pass_length = get_number_between(1,30)

characters = [""]
a_to_z_low = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p",
              "q","r","s","t","u","v","w","x","y","z"]
a_to_z_high = ["A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P",
               "Q","R","S","T","U","V","W","X","Y","Z"]
zero_to_9 = ["0","1","2","3","4","5","6","7","8","9"]
special_chars = ["!","\"","£","$","%","^","&","*","(",")","-","=","+","_","@",
                 "#","[","]","{","}","|","\\"]

print("Select character set:")
print("1) all (a-z, A-Z, 0-9, special characters)")
print("2) Manual selection")

char_select = get_number_between(1,2)

if char_select == 1:
    print("All characters selected")
    characters = characters + a_to_z_low + a_to_z_high + zero_to_9 + special_chars + [" "]
    print(characters)

if char_select == 2:
    print("Manual selection")
    print("Current characters:")
    print(characters)
    print("Select character set to add.")
    print("1) a-z")
    print("2) A-Z")
    print("3) 0-9")
    print("4) Special characters")
    print("5) Spaces")
    print("6) Clear selection")
    print("7) Done")
    selected, selected1, selected2, selected3, selected4, selected5 = False, False, False, False, False, False
    while not selected:
        set_select = get_number_between(1,7)
        if set_select == 1 and not selected1:
            characters = characters + a_to_z_low
            selected1 = True
        if set_select == 2 and not selected2:
            characters = characters + a_to_z_high
            selected2 = True
        if set_select == 3 and not selected3:
            characters = characters + zero_to_9
            selected3 = True
        if set_select == 4 and not selected4:
            characters = characters + special_chars
            selected4 = True
        if set_select == 5 and not selected5:
            characters.append(" ")
            selected5 = True
        if set_select == 6:
            characters = [""]
            selected1, selected2, selected3, selected4, selected5 = False, False, False, False, False
        if set_select == 7:
            if characters != [""]:
                selected = True
            else:
                print("Select at leaset one character set.")
        print("Current character set:")
        print(characters)

password = []

#Create a list of password characters matching the max length of password
for i in range(max_pass_length):
    password.append("")

#Prepopulate the characters of the min length of the password
for i in range(min_pass_length):
    if debug:
        print(i)
    password[-(i+1)] = characters[1]

complete = False

#DEBUG
if debug:
    print("DEBUG")
    print(password)

while (not complete):
    current_character = -1
    for character in characters[1:]:
        password[current_character] = character
        pword=""
        for ch in password:
            pword += ch
        pword += "\n"
        if debug:
            print(pword)
        else:
            f.write(pword)
    char_num = 1

    #Test if complete
    if len(set(password)) == 1:
        if password[0] == characters[-1]:
            complete = True

    #If not, increment higher characters accordingly
    else:
        while True:
            if characters.index(password[current_character-char_num]) == len(characters)-1:
                char_num += 1
            else:
                password[current_character-char_num] = characters[characters.index(password[current_character-char_num])+1]
                if char_num > 1:
                    password[current_character-char_num+1] = characters[0]

                break
f.close
print("\n===Done===")