"""
Run this program once you've finished writing barcode_utilities.

1. make sure that your functions in barcode_utilties work as
   expected
2. make sure that all 3 files, barcode_utilities.py, upc.py, and
   this file, draw_barcode.py are all in the same directory
3. run this program
4. try inputting: 075678164125
5. you should get a barcode generated!
6. if you want to test that everything works, try downloading a
   barcode reading app for your phone and scanning the resulting
   image!
"""
import upc
upc.start()