LUHN
Luhn Check Digit for Error Detection

LUHN is a Python library which demonstrates the calculation and use of the Luhn check digit for error detection.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

LUHN is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.

Related Data and Programs:

BANK, a Python library which can compute the check digit associated with a US Bank Routing Number check digit, or it can report whether a 9-digit code is actually valid.

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Source Code:

• luhn.py, routines to compute the check digit and to validate a string.
• luhn.sh, runs all the tests;
• luhn.txt, the output from all the tests;

You can go up one level to the Python source codes.