# stdnum.ee.kmkr

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: ...

stdnum.ee.kmkr.checksum(number: str) → int

  Calculate the checksum.

stdnum.ee.kmkr.compact(number: str) → str

  Convert the number to the minimal representation. This strips the number of any valid separators and removes surrounding whitespace.

stdnum.ee.kmkr.is_valid(number: str) → bool

  Check if the number provided is a valid VAT number. This checks the length, formatting and check digit.

stdnum.ee.kmkr.validate(number: str) → str

  Check if the number provided is a valid VAT number. This checks the length, formatting and check digit.