# stdnum.ar.cbu

CBU (Clave Bancaria Uniforme, Argentine bank account number).

CBU it s a code of the Banks of Argentina to identify customer accounts. The number consists of 22 digits and consists of a 3 digit bank identifier, followed by a 4 digit branch identifier, a check digit, a 13 digit account identifier and another check digit.

More information:

- https://es.wikipedia.org/wiki/Clave_Bancaria_Uniforme

    >>> validate('2850590940090418135201')
    '2850590940090418135201'
    >>> format('2850590940090418135201')
    '28505909 40090418135201'
    >>> validate('2810590940090418135201')
    Traceback (most recent call last):
        ...
    InvalidChecksum: ...

`stdnum.ar.cbu.``calc_check_digit`(number)

  Calculate the check digit.

`stdnum.ar.cbu.``compact`(number)

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

`stdnum.ar.cbu.``format`(number)

  Reformat the number to the standard presentation format.

`stdnum.ar.cbu.``is_valid`(number)

  Check if the number is a valid CBU.

`stdnum.ar.cbu.``validate`(number)

  Check if the number is a valid CBU.