Parse, validate and reformat standard numbers and codes.

This library offers functions for parsing, validating and reformatting
standard numbers and codes in various formats.

Currently this package supports the following formats:

* al.nipt: NIPT (Numri i Identifikimit për Personin e Tatueshëm, Albanian VAT number)
* ar.cuit: CUIT (Código Único de Identificación Tributaria, Argentinian tax number)
* at.businessid: Austrian Company Register Numbers
* at.uid: UID (Umsatzsteuer-Identifikationsnummer, Austrian VAT number)
* be.vat: BTW, TVA, NWSt (Belgian VAT number)
* bg.egn: EGN (ЕГН, Единен граждански номер, Bulgarian personal identity codes)
* bg.pnf: PNF (ЛНЧ, Личен номер на чужденец, Bulgarian number of a foreigner)
* bg.vat: VAT (Идентификационен номер по ДДС, Bulgarian VAT number)
* br.cnpj: CNPJ (Cadastro Nacional da Pessoa Jurídica, Brazillian company identifier)
* br.cpf: CPF (Cadastro de Pessoas Físicas, Brazillian national identifier)
* ch.ssn: Swiss social security number ("Sozialversicherungsnummer")
* ch.uid: UID (Unternehmens-Identifikationsnummer, Swiss business identifier)
* ch.vat: VAT, MWST, TVA, IVA, TPV (Mehrwertsteuernummer, the Swiss VAT number)
* cl.rut: RUT (Rol Único Tributario, Chilean national tax number)
* cn.ric: RIC No. (Chinese Resident Identity Card Number)
* co.nit: NIT (Número De Identificación Tributaria, Colombian identity code)
* cusip: CUSIP number (financial security identification number)
* cy.vat: Αριθμός Εγγραφής Φ.Π.Α. (Cypriot VAT number)
* cz.dic: DIČ (Daňové identifikační číslo, Czech VAT number)
* cz.rc: RČ (Rodné číslo, the Czech birth number)
* de.vat: Ust ID Nr. (Umsatzsteur Identifikationnummer, German VAT number)
* de.wkn: Wertpapierkennnummer (German securities identification code)
* dk.cpr: CPR (personnummer, the Danish citizen number)
* dk.cvr: CVR (Momsregistreringsnummer, Danish VAT number)
* do.cedula: Cedula (Dominican Republic national identification number)
* do.rnc: RNC (Registro Nacional del Contribuyente, Dominican Republic tax number)
* ean: EAN (International Article Number)
* ec.ci: CI (Cédula de identidad, Ecuadorian personal identity code)
* ec.ruc: RUC (Registro Único de Contribuyentes, Ecuadorian company tax number)
* ee.ik: Isikukood (Estonian Personcal ID number)
* ee.kmkr: KMKR (Käibemaksukohuslase, Estonian VAT number)
* es.cif: CIF (Certificado de Identificación Fiscal, Spanish company tax number)
* es.dni: DNI (Documento nacional de identidad, Spanish personal identity codes)
* es.nie: NIE (Número de Identificación de Extranjeros, Spanish foreigner number)
* es.nif: NIF (Número de Identificación Fiscal, Spanish VAT number)
* eu.at_02: SEPA Identifier of the Creditor (AT-02)
* eu.vat: VAT (European Union VAT number)
* fi.alv: ALV nro (Arvonlisäveronumero, Finnish VAT number)
* fi.associationid: Finnish Association Identifier
* fi.hetu: HETU (Henkilötunnus, Finnish personal identity code)
* fi.ytunnus: Y-tunnus (Finnish business identifier)
* fr.siren: SIREN (a French company identification number)
* fr.tva: n° TVA (taxe sur la valeur ajoutée, French VAT number)
* gb.sedol: SEDOL number (Stock Exchange Daily Official List number)
* gb.vat: VAT (United Kingdom (and Isle of Man) VAT registration number)
* gr.vat: FPA, ΦΠΑ, ΑΦΜ (Αριθμός Φορολογικού Μητρώου, the Greek VAT number)
* grid: GRid (Global Release Identifier)
* hr.oib: OIB (Osobni identifikacijski broj, Croatian identification number)
* hu.anum: ANUM (Közösségi adószám, Hungarian VAT number)
* iban: IBAN (International Bank Account Number)
* ie.pps: PPS No (Personal Public Service Number, Irish personal number)
* ie.vat: VAT (Irish VAT number)
* imei: IMEI (International Mobile Equipment Identity)
* imo: IMO number (International Maritime Organization number)
* imsi: IMSI (International Mobile Subscriber Identity)
* is_.kennitala: Kennitala (Icelandic personal and organisation identity code)
* is_.vsk: VSK number (Virðisaukaskattsnúmer, Icelandic VAT number)
* isan: ISAN (International Standard Audiovisual Number)
* isbn: ISBN (International Standard Book Number)
* isil: ISIL (International Standard Identifier for Libraries)
* isin: ISIN (International Securities Identification Number)
* ismn: ISMN (International Standard Music Number)
* iso6346: ISO 6346 (International standard for container identification)
* iso9362: ISO 9362 (Business identifier codes)
* issn: ISSN (International Standard Serial Number)
* it.codicefiscale: Codice Fiscale (Italian tax code for individuals)
* it.iva: Partita IVA (Italian VAT number)
* lt.pvm: PVM (Pridėtinės vertės mokestis mokėtojo kodas, Lithuanian VAT number)
* lu.tva: TVA (taxe sur la valeur ajoutée, Luxembourgian VAT number)
* lv.pvn: PVN (Pievienotās vērtības nodokļa, Latvian VAT number)
* meid: MEID (Mobile Equipment Identifier)
* mt.vat: VAT (Maltese VAT number)
* mx.rfc: RFC (Registro Federal de Contribuyentes, Mexican tax number)
* my.nric: NRIC No. (Malaysian National Registration Identity Card Number)
* nl.brin: Brin number (Dutch number for schools)
* nl.bsn: BSN (Burgerservicenummer, Dutch national identification number)
* nl.btw: BTW-nummer (Omzetbelastingnummer, the Dutch VAT number)
* nl.onderwijsnummer: Onderwijsnummer (Dutch student school number)
* nl.postcode: Postcode (Dutch postal code)
* no.mva: MVA (Merverdiavgift, Norwegian VAT number)
* no.orgnr: Orgnr (Organisasjonsnummer, Norwegian organisation number)
* pl.nip: NIP (Numer Identyfikacji Podatkowej, Polish VAT number)
* pl.pesel: PESEL (Polish national identification number)
* pl.regon: REGON (Rejestr Gospodarki Narodowej, Polish register of economic units)
* pt.nif: NIF (Número de identificação fiscal, Portuguese VAT number)
* ro.cf: CF (Cod de înregistrare în scopuri de TVA, Romanian VAT number)
* ro.cnp: CNP (Cod Numeric Personal, Romanian Numerical Personal Code)
* ru.inn: ИНН (Идентификационный номер налогоплательщика, Russian tax identifier)
* se.orgnr: Orgnr (Organisationsnummer, Swedish company number)
* se.vat: VAT (Moms, Mervärdesskatt, Swedish VAT number)
* si.ddv: ID za DDV (Davčna številka, Slovenian VAT number)
* sk.dph: IČ DPH (IČ pre daň z pridanej hodnoty, Slovak VAT number)
* sk.rc: RČ (Rodné číslo, the Slovak birth number)
* sm.coe: COE (Codice operatore economico, San Marino national tax number)
* us.atin: ATIN (U.S. Adoption Taxpayer Identification Number)
* us.ein: EIN (U.S. Employer Identification Number)
* us.itin: ITIN (U.S. Individual Taxpayer Identification Number)
* us.ptin: PTIN (U.S. Preparer Tax Identification Number)
* us.rtn: RTN (Routing transport number)
* us.ssn: SSN (U.S. Social Security Number)
* us.tin: TIN (U.S. Taxpayer Identification Number)

Furthermore a number of generic check digit algorithms are available:

* iso7064.mod_11_10: The ISO 7064 Mod 11, 10 algorithm
* iso7064.mod_11_2: The ISO 7064 Mod 11, 2 algorithm
* iso7064.mod_37_2: The ISO 7064 Mod 37, 2 algorithm
* iso7064.mod_37_36: The ISO 7064 Mod 37, 36 algorithm
* iso7064.mod_97_10: The ISO 7064 Mod 97, 10 algorithm
* luhn: The Luhn and Luhn mod N algorithms
* verhoeff: The Verhoeff algorithm

All modules implement a common interface:

>>> from stdnum import isbn
>>> isbn.validate('978-9024538270')
'9789024538270'
>>> isbn.validate('978-9024538271')
Traceback (most recent call last):
    ...
InvalidChecksum: ...

Apart from the validate() function, modules generally provide extra
parsing, validation, formatting or conversion functions.