A very simple Python script to generate Xcode storyboard file IDs.

generate_storyboard_id.py

#!/usr/bin/python

import string
import random


def get_random_character(input):
    if input == 'X':
        all_characters = string.ascii_letters + string.digits
        return random.choice(all_characters)
    else:
        return input

def main():
    id_template = "XXX-XX-XXX"
    print ''.join([get_random_character(x) for x in id_template])

if __name__ == "__main__":
    main()