new_contents: #!environment python
  # -*- coding: utf-8 -*-
  ###############################################################################
  #
  #    Copyright (C) 2001-2014 Micronaet SRL (<http://www.micronaet.it>).
  #
  #    This program is free software: you can redistribute it and/or modify
  #    it under the terms of the GNU Affero General Public License as published
  #    by the Free Software Foundation, either version 3 of the License, or
  #    (at your option) any later version.
  #
  #    This program is distributed in the hope that it will be useful,
  #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  #    GNU Affero General Public License for more details.
  #
  #    You should have received a copy of the GNU Affero General Public License
  #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  #
  ###############################################################################
  import os
  import barcode
  
  # Parameters:
  file_ean = 'ean.csv'
  ean_part = '8000001'
  
  eans = []
  double = 0
  for ean in open(file_ean, 'r'):
      if ean.startswith(ean_gpb):
          ean_code = ean[7:12]
          if ean_code in eans:
              double += 1
          else:   
              eans.append(ean_code)
  
  free = 0
  EAN = barcode.get_barcode_class('ean13')
  for i in range(1, 100000):
      ean_code = '%05d' % i
      if ean_code in eans:
          continue
          
      free += 1    
      ean12 = '%s%s' % (ean_part, ean_code)
      ean = EAN(ean12)
      ean13 = ean.get_fullcode()
      print ean13
  
  print 'Used: %s - Double: %s - Free %s' % (
      len(eans),
      double,
      free,
      )
      
  
  # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
  
  
subject: Add ean check free code