old_contents: # coding=utf-8
  
  localized = True
  default_locale = 'en_GB'
  
  from .. import BaseProvider
  import string
  from string import ascii_uppercase
  import re
  
  class Provider(BaseProvider):
      """
      Provider for IBAN/BBAN: it generates valid (valid length, valid checksum)
      IBAN/BBANs for the given country. But the ids of the banks are random and
      not valid banks! Same for account numbers.
      """
      
      ALPHA = {c: str(ord(c) % 55) for c in string.ascii_uppercase}
  
      # see https://en.wikipedia.org/wiki/International_Bank_Account_Number
      bban_format = '????#############'
      country_code = 'GB'
  
      def bank_country(self):
          return self.country_code
  
      def bban(self):
          temp = re.sub(r'\?',
              lambda x: self.random_element(ascii_uppercase), 
              self.bban_format)
          return self.numerify(temp)
  
      def iban(self):
          bban = self.bban()
  
          check = bban + self.country_code + '00'
          check = int(''.join(self.ALPHA.get(c, c) for c in check))
          check = 98 - (check % 97)
          check = str(check).zfill(2)
  
          return self.country_code + check + bban
  
new_contents: # coding=utf-8
  
  localized = True
  default_locale = 'en_GB'
  
  from .. import BaseProvider
  import string
  from string import ascii_uppercase
  import re
  
  class Provider(BaseProvider):
      """
      Provider for IBAN/BBAN: it generates valid (valid length, valid checksum)
      IBAN/BBANs for the given country. But the ids of the banks are random and
      not valid banks! Same for account numbers.
      """
  
      ALPHA = {c: str(ord(c) % 55) for c in string.ascii_uppercase}
  
      # see https://en.wikipedia.org/wiki/International_Bank_Account_Number
      bban_format = '????#############'
      country_code = 'GB'
  
      def bank_country(self):
          return self.country_code
  
      def bban(self):
          temp = re.sub(r'\?',
              lambda x: self.random_element(ascii_uppercase),
              self.bban_format)
          return self.numerify(temp)
  
      def iban(self):
          bban = self.bban()
  
          check = bban + self.country_code + '00'
          check = int(''.join(self.ALPHA.get(c, c) for c in check))
          check = 98 - (check % 97)
          check = str(check).zfill(2)
  
          return self.country_code + check + bban
  
subject: remove trailing whitespace