/luhn

Generate and verify Luhn check digits

Primary LanguagePythonMIT LicenseMIT

luhn

pypi buildstatus coverage

Generate and verify Luhn check digits

Install with

pip install luhn

Use verify to check digit strings

>>> from luhn import *
>>> verify('356938035643809')
True
>>> verify('534618613411236')
False

and use generate to produce them

>>> generate('53461861341123')
4

or append for convenience

>>> append('53461861341123')
'534618613411234'