old_contents: #!/usr/bin/env python
  # coding: utf-8
  
  import string
  
  ALPHA = {c: str(ord(c) % 55) for c in string.ascii_uppercase}
  
  ISPB = {
      'Banco BNP Paribas Brasil S.A.': '01522368',
      'Banco Bradesco S.A.': '60746948',
      'Banco Citibank S.A.': '33479023',
      'Banco Caixa Econômica Federal': '00360305',
      'Banco Cooperativo Sicredi S.A.': '01181521',
      'Banco de La Nacion Argentina': '33042151',
      'Banco de La Provincia de Buenos Aires': '44189447',
      'Banco de La Republica Oriental del Uruguay': '51938876',
      'Banco de Tokyo-Mitsubishi UFJ Brasil S.A.': '60498557',
      'Banco do Brasil S.A.': '00000000',
      'Banco do Estado do Rio Grande do Sul S.A.': '92702067',
      'Banco Intercap S.A.': '58497702',
      'Banco Itaú BBA S.A.': '17298092',
      'Banco Mercantil do Brasil S.A.': '17184037',
      'Banco Modal S.A.': '30723886',
      'Banco Rural S.A.': '33124959',
      'Banco Santander S.A.': '90400888',
      'Banco Société Générale Brasil S.A.': '61533584',
      'BRB - Banco de Brasí­lia S.A.': '00000208',
      'Deutsche Bank S.A. Banco Alemão': '62331228',
      'HSBC Bank Brasil S.A. Banco Múltiplo': '01701201',
      'Itaú Unibanco S.A.': '60701190',
      'Natixis Brasil S.A. Banco Múltiplo': '09274232',
      'Unibanco - União de Bancos Brasileiros S.A.': '33700394'
  }
  
  
  def make_iban(ispb, agency, account, country='BR', account_type='C', account_owner='1'):
      assert(len(ispb) == 8)
      assert(len(agency) <= 5)
      assert(len(account) <= 10)
      agency = agency.zfill(5)
      account = account.zfill(10)
      iban = ispb + agency + account + account_type + account_owner
      check = iban + country + '00'
      check = int(''.join(ALPHA.get(c, c) for c in check))
      check = 98 - (check % 97)
      check = str(check).zfill(2)
      return country + check + iban
  
  
  def check_iban(iban):
      if len(iban) != 29:
          return False
      check = iban[4:] + iban[:4]
      check = int(''.join(ALPHA.get(c, c) for c in check))
      return check % 97 == 1
  
  
  if __name__ == '__main__':
      iban = make_iban(ISPB['Banco do Brasil S.A.'], '12345', '123456')
      check = check_iban(iban)
      print check, iban
  
new_contents: #!/usr/bin/env python
  # coding: utf-8
  
  import string
  
  ALPHA = {c: str(ord(c) % 55) for c in string.ascii_uppercase}
  
  ISPB = {
      'Banco BNP Paribas Brasil S.A.': '01522368',
      'Banco Bradesco S.A.': '60746948',
      'Banco Citibank S.A.': '33479023',
      'Banco Caixa Econômica Federal': '00360305',
      'Banco Cooperativo Sicredi S.A.': '01181521',
      'Banco de La Nacion Argentina': '33042151',
      'Banco de La Provincia de Buenos Aires': '44189447',
      'Banco de La Republica Oriental del Uruguay': '51938876',
      'Banco de Tokyo-Mitsubishi UFJ Brasil S.A.': '60498557',
      'Banco do Brasil S.A.': '00000000',
      'Banco do Estado do Rio Grande do Sul S.A.': '92702067',
      'Banco Inter S.A.': '00416968',
      'Banco Intercap S.A.': '58497702',
      'Banco Itaú BBA S.A.': '17298092',
      'Banco Mercantil do Brasil S.A.': '17184037',
      'Banco Modal S.A.': '30723886',
      'Banco Rural S.A.': '33124959',
      'Banco Santander S.A.': '90400888',
      'Banco Société Générale Brasil S.A.': '61533584',
      'BRB - Banco de Brasí­lia S.A.': '00000208',
      'Deutsche Bank S.A. Banco Alemão': '62331228',
      'Easynvest - Título Corretora de Valores SA': '62169875',
      'HSBC Bank Brasil S.A. Banco Múltiplo': '01701201',
      'Itaú Unibanco S.A.': '60701190',
      'Natixis Brasil S.A. Banco Múltiplo': '09274232',
      'Nu Pagamentos S.A': '18236120',
      'Unibanco - União de Bancos Brasileiros S.A.': '33700394'
  }
  
  
  def make_iban(ispb, agency, account, country='BR', account_type='C', account_owner='1'):
      assert(len(ispb) == 8)
      assert(len(agency) <= 5)
      assert(len(account) <= 10)
      agency = agency.zfill(5)
      account = account.zfill(10)
      iban = ispb + agency + account + account_type + account_owner
      check = iban + country + '00'
      check = int(''.join(ALPHA.get(c, c) for c in check))
      check = 98 - (check % 97)
      check = str(check).zfill(2)
      return country + check + iban
  
  
  def check_iban(iban):
      if len(iban) != 29:
          return False
      check = iban[4:] + iban[:4]
      check = int(''.join(ALPHA.get(c, c) for c in check))
      return check % 97 == 1
  
  
  if __name__ == '__main__':
      iban = make_iban(ISPB['Banco do Brasil S.A.'], '12345', '123456')
      check = check_iban(iban)
      print check, iban
  
subject: Add new banks