vin, a Python code which computes the check digit for a Vehicle Identification Number (VIN), or verifies that a given VIN is legitimate.
The computer code and data files made available on this web page are distributed under the GNU LGPL license.
vin is available in a Python version.
bank, a Python code which computes the check digit associated with a US Bank Routing Number check digit, or reports whether a 9-digit code is valid.
isbn, a Python code which determines the check digit for an International Standard Book Number or reports whether a given ISBN is valid.
luhn, a Python code which computes the Luhn check digit for a string, or validates a string.
upc, a Python code which can determine the check digit for a Uniform Product Code (UPC) or report whether a given UPC is valid.