stdnum.au.abn

ABN (Australian Business Number).

The Australian Business Number (ABN) is an identifier issued to entities registered in the Australian Business Register (ABR). The number consists of 11 digits of which the first two are check digits.

More information:

• https://en.wikipedia.org/wiki/Australian_Business_Number

• https://abr.business.gov.au/

>>> validate('83 914 571 673')
'83914571673'
>>> validate('99 999 999 999')
Traceback (most recent call last):
    ...
InvalidChecksum: ...
>>> format('51824753556')
'51 824 753 556'

stdnum.au.abn.calc_check_digits(number: str) → str

Calculate the check digits that should be prepended to make the number valid.

stdnum.au.abn.compact(number: str) → str

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

stdnum.au.abn.format(number: str) → str

Reformat the number to the standard presentation format.

stdnum.au.abn.is_valid(number: str) → bool

Check if the number is a valid ABN.

stdnum.au.abn.validate(number: str) → str

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