checkdigit.verhoeff.calculate¶

checkdigit.verhoeff.calculate(data: str) → str[source]¶

Calculates a Verhoeff check digit.

Parameters:: data – A block of data without the check digit
Returns:: A string representing the missing check digit
Return type:: str

Examples

>>> from checkdigit import verhoeff
>>> verhoeff.calculate('236')
'3'
>>> verhoeff.calculate('123456')
'8'
>>> verhoeff.calculate('1337')
'5'