Python based barcode readers

[Robocop]

I also forgot to mention that it need not be nearly as robust as
something like Jailhelper 2.0, I will not really need to compensate
for noise and irregular conditions.  All of my barcodes will be
scanned in a predictable, and consistent environment (i.e. a scanner),
so all i need is some stupid little script that will read the an image
in and decode it.