password.py

#password.py

from random import randint, choice, shuffle, sample
from mycalc import unique
from time import sleep
import winsound

def get_user_choices(special_chars_string):
    print("How many characters long do you want your password to be? Default is 16")
    user_num_chars = input("Enter the number of characters: " )
    if user_num_chars == "":
        user_num_chars = 16
        print("The number of characters was set to 16, by default")
    else:
        user_num_chars = int(user_num_chars)
    print()
    print("These are the special characters available:", special_chars_string)
    print("Or you can make your own list of special characters to use:")
    print("Enter your list of special characters if you want to make your own list")
    print("Enter nothing to accept the default of the list available")
    ans = input("Enter your list or nothing: ")
    if ans != "":
        special_chars_string = unique(ans)
        print("After removing any duplicate characters, your list is", special_chars_string)
    special_chars_list = list(special_chars_string)
    special_chars_list_length = len(special_chars_list)
    user_max_num_special_chars = calc_user_max_num_special_chars(user_num_chars, special_chars_list_length)
    print("Enter the number of special characters. Default is 1. Maximum is", user_max_num_special_chars)
    print()
    user_num_special_chars = input("Enter an integer: ")
    if user_num_special_chars == "":
        user_num_special_chars = 1
        print("The number of special characters was set to 1, by default")
    else:
        user_num_special_chars = int(user_num_special_chars)
    if user_num_special_chars > user_max_num_special_chars:
            user_num_special_chars = user_max_num_special_chars
            winsound.PlaySound("/P31Working/Sounds/beat", winsound.SND_ALIAS)
            limit = user_max_num_special_chars
            print("You asked for too many special characters; the number was reduced to the limit", limit)
            sleep(2)
    return user_num_chars, user_num_special_chars, special_chars_list

def calc_user_max_num_special_chars(user_num_chars, special_chars_list_length):
    user_max_num_special_chars = user_num_chars - 2
    if user_max_num_special_chars > special_chars_list_length:
        user_max_num_special_chars = special_chars_list_length
    return user_max_num_special_chars

def select_special_chars_to_add(user_num_special_chars, user_num_chars, special_chars_list):
    return sample(special_chars_list, user_num_special_chars)

def password(user_num_chars, special_chars_num):
    pw_as_list = []
    # these 2 lines ensure at least 1 alpha and 1 digit
    pw_as_list += choice(all_alpha_list)
    pw_as_list += choice(all_digits_list)
    # get the special characters into pw
    pw_as_list += select_special_chars_to_add(user_num_special_chars, user_num_chars, special_chars_list)
    # add alphanum characters to fill out the pw to the length desired by user
    while len(pw_as_list) < user_num_chars:
        pw_as_list += choice(alphanum_list)
    # shuffle the pw characters
    shuffle(pw_as_list)
    pw = ''.join(pw_as_list)
    return pw


alphanum_string = "abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ0123456789" # Removed "l", "I", "O"
alphanum_list = list(alphanum_string)

# other_chars_string = "!#$%&)(*+/.:;<=>?@^" in Webmaster Password Generator
special_chars_string = "!$#@%&^*" # These seem to be the only spec. chars permitted by Comcast
special_chars_list = list(special_chars_string)

all_alpha = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUV"
all_alpha_list = list(all_alpha)

all_digits_string = "01234567890"
all_digits_list = list(all_digits_string)

print("So you need a password.")
print()

while True:
    user_num_chars, user_num_special_chars, special_chars_list = get_user_choices(special_chars_string)
    pw = password(user_num_chars, user_num_special_chars)
    print()
    print("Here are 10 passwords of length", user_num_chars, "that meet your conditions:")
    while True:
        for z in range(10):
            sleep(.2)
            pw = password(user_num_chars, user_num_special_chars)
            print()
            print(pw)
        print()
        print("Another 10 or start over with a different style and number?")
        print("Enter nothing for another 10; 'q' to quit; 'd' to start over.")
        ans = input("Your answer? ")
        print()
        if ans == "":
            print()
            print("Here are another 10 of the same style:")
            print()
        elif ans == "d":
            break
        else:
            break

    if ans == "d":
        print("Starting over:")
    else:
        break

print("Bye.")

sleep(2.1)