# stdnum.no.orgnr

Orgnr (Organisasjonsnummer, Norwegian organisation number).

The Organisasjonsnummer is a 9-digit number with a straightforward check mechanism.

More information:

- https://nn.wikipedia.org/wiki/Organisasjonsnummer

- https://no.wikipedia.org/wiki/Organisasjonsnummer

    >>> validate('988 077 917')
    '988077917'
    >>> validate('988 077 918')
    Traceback (most recent call last):
        ...
    InvalidChecksum: ...
    >>> format('988077917')
    '988 077 917'

stdnum.no.orgnr.checksum(number: str) → int

  Calculate the checksum.

stdnum.no.orgnr.compact(number: str) → str

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

stdnum.no.orgnr.format(number: str) → str

  Reformat the number to the standard presentation format.

stdnum.no.orgnr.is_valid(number: str) → bool

  Check if the number is a valid organisation number.

stdnum.no.orgnr.validate(number: str) → str

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