KMKR (Käibemaksukohuslase, Estonian VAT number).
>>> compact('EE 100 931 558')
'100931558'
>>> validate('100594102')
'100594102'
>>> validate('100594103') # incorrect check digit
Traceback (most recent call last):
...
InvalidChecksum: ...
Traceback (most recent call last):
...
InvalidChecksum: ...
Calculate the checksum.
Convert the number to the minimal representation. This strips the number of any valid separators and removes surrounding whitespace.
Checks to see if the number provided is a valid VAT number. This checks the length, formatting and check digit.
Checks to see if the number provided is a valid VAT number. This checks the length, formatting and check digit.